Home / 80,977.61-111,749.27-45,166.70

Finding the Fourth Proportional to 80,977.61, 111,749.27 and 45,166.70

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Solution

The fourth proportional to 80,977.61, 111,749.27 and 45,166.70 is: 62,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,977.61 : 111,749.27 = 45,166.70 : x
  2. Step 2: Convert to fraction form
    80,977.61/111,749.27 = 45,166.70/x
  3. Step 3: Cross multiply
    80,977.61x = 111,749.27 × 45,166.70
  4. Step 4: Simplify right side
    80,977.61x = 5,047,344,968.73
  5. Step 5: Solve for x
    x = 5,047,344,968.73/80,977.61
  6. Step 6: Final answer
    x = 62,330.13

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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.