Home / 74,397.16-102,639-42,549.04

Finding the Fourth Proportional to 74,397.16, 102,639 and 42,549.04

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Solution

The fourth proportional to 74,397.16, 102,639 and 42,549.04 is: 58,701.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,397.16 : 102,639 = 42,549.04 : x
  2. Step 2: Convert to fraction form
    74,397.16/102,639 = 42,549.04/x
  3. Step 3: Cross multiply
    74,397.16x = 102,639 × 42,549.04
  4. Step 4: Simplify right side
    74,397.16x = 4,367,190,916.56
  5. Step 5: Solve for x
    x = 4,367,190,916.56/74,397.16
  6. Step 6: Final answer
    x = 58,701.04

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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.