Home / 42,534.78-63,785.61-17,578.86

Finding the Fourth Proportional to 42,534.78, 63,785.61 and 17,578.86

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Solution

The fourth proportional to 42,534.78, 63,785.61 and 17,578.86 is: 26,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,534.78 : 63,785.61 = 17,578.86 : x
  2. Step 2: Convert to fraction form
    42,534.78/63,785.61 = 17,578.86/x
  3. Step 3: Cross multiply
    42,534.78x = 63,785.61 × 17,578.86
  4. Step 4: Simplify right side
    42,534.78x = 1,121,278,308.20
  5. Step 5: Solve for x
    x = 1,121,278,308.20/42,534.78
  6. Step 6: Final answer
    x = 26,361.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.