Home / 90,691.38-125,148.06-50,402.52

Finding the Fourth Proportional to 90,691.38, 125,148.06 and 50,402.52

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Solution

The fourth proportional to 90,691.38, 125,148.06 and 50,402.52 is: 69,552.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,691.38 : 125,148.06 = 50,402.52 : x
  2. Step 2: Convert to fraction form
    90,691.38/125,148.06 = 50,402.52/x
  3. Step 3: Cross multiply
    90,691.38x = 125,148.06 × 50,402.52
  4. Step 4: Simplify right side
    90,691.38x = 6,307,777,597.11
  5. Step 5: Solve for x
    x = 6,307,777,597.11/90,691.38
  6. Step 6: Final answer
    x = 69,552.12

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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.