Home / 74,428.16-102,713.28-42,594.56

Finding the Fourth Proportional to 74,428.16, 102,713.28 and 42,594.56

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Solution

The fourth proportional to 74,428.16, 102,713.28 and 42,594.56 is: 58,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,428.16 : 102,713.28 = 42,594.56 : x
  2. Step 2: Convert to fraction form
    74,428.16/102,713.28 = 42,594.56/x
  3. Step 3: Cross multiply
    74,428.16x = 102,713.28 × 42,594.56
  4. Step 4: Simplify right side
    74,428.16x = 4,375,026,967.76
  5. Step 5: Solve for x
    x = 4,375,026,967.76/74,428.16
  6. Step 6: Final answer
    x = 58,781.88

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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.