Home / 80,944.12-111,704.12-45,132.92

Finding the Fourth Proportional to 80,944.12, 111,704.12 and 45,132.92

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Solution

The fourth proportional to 80,944.12, 111,704.12 and 45,132.92 is: 62,284.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,944.12 : 111,704.12 = 45,132.92 : x
  2. Step 2: Convert to fraction form
    80,944.12/111,704.12 = 45,132.92/x
  3. Step 3: Cross multiply
    80,944.12x = 111,704.12 × 45,132.92
  4. Step 4: Simplify right side
    80,944.12x = 5,041,533,111.63
  5. Step 5: Solve for x
    x = 5,041,533,111.63/80,944.12
  6. Step 6: Final answer
    x = 62,284.12

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Double scale
Find fourth proportional to 80,945.12, 111,705.50 and 45,133.92
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.