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Finding the Fourth Proportional to 62,434.84, 86,136 and 38,520.04

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Solution

The fourth proportional to 62,434.84, 86,136 and 38,520.04 is: 53,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,434.84 : 86,136 = 38,520.04 : x
  2. Step 2: Convert to fraction form
    62,434.84/86,136 = 38,520.04/x
  3. Step 3: Cross multiply
    62,434.84x = 86,136 × 38,520.04
  4. Step 4: Simplify right side
    62,434.84x = 3,317,962,165.44
  5. Step 5: Solve for x
    x = 3,317,962,165.44/62,434.84
  6. Step 6: Final answer
    x = 53,142.80

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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.