Home / 81,284.45-112,170.56-45,477.86

Finding the Fourth Proportional to 81,284.45, 112,170.56 and 45,477.86

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Solution

The fourth proportional to 81,284.45, 112,170.56 and 45,477.86 is: 62,758.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,284.45 : 112,170.56 = 45,477.86 : x
  2. Step 2: Convert to fraction form
    81,284.45/112,170.56 = 45,477.86/x
  3. Step 3: Cross multiply
    81,284.45x = 112,170.56 × 45,477.86
  4. Step 4: Simplify right side
    81,284.45x = 5,101,276,235.56
  5. Step 5: Solve for x
    x = 5,101,276,235.56/81,284.45
  6. Step 6: Final answer
    x = 62,758.33

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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.