Home / 90,538.32-124,949.18-52,310.78

Finding the Fourth Proportional to 90,538.32, 124,949.18 and 52,310.78

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Solution

The fourth proportional to 90,538.32, 124,949.18 and 52,310.78 is: 72,192.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,538.32 : 124,949.18 = 52,310.78 : x
  2. Step 2: Convert to fraction form
    90,538.32/124,949.18 = 52,310.78/x
  3. Step 3: Cross multiply
    90,538.32x = 124,949.18 × 52,310.78
  4. Step 4: Simplify right side
    90,538.32x = 6,536,189,066.16
  5. Step 5: Solve for x
    x = 6,536,189,066.16/90,538.32
  6. Step 6: Final answer
    x = 72,192.52

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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.