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Finding the Fourth Proportional to 68,397.39, 102,641.82 and 26,312.22

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Solution

The fourth proportional to 68,397.39, 102,641.82 and 26,312.22 is: 39,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,397.39 : 102,641.82 = 26,312.22 : x
  2. Step 2: Convert to fraction form
    68,397.39/102,641.82 = 26,312.22/x
  3. Step 3: Cross multiply
    68,397.39x = 102,641.82 × 26,312.22
  4. Step 4: Simplify right side
    68,397.39x = 2,700,734,149.04
  5. Step 5: Solve for x
    x = 2,700,734,149.04/68,397.39
  6. Step 6: Final answer
    x = 39,485.92

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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.