Home / 62,781.98-86,639.20-34,489.50

Finding the Fourth Proportional to 62,781.98, 86,639.20 and 34,489.50

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Solution

The fourth proportional to 62,781.98, 86,639.20 and 34,489.50 is: 47,595.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,781.98 : 86,639.20 = 34,489.50 : x
  2. Step 2: Convert to fraction form
    62,781.98/86,639.20 = 34,489.50/x
  3. Step 3: Cross multiply
    62,781.98x = 86,639.20 × 34,489.50
  4. Step 4: Simplify right side
    62,781.98x = 2,988,142,688.40
  5. Step 5: Solve for x
    x = 2,988,142,688.40/62,781.98
  6. Step 6: Final answer
    x = 47,595.55

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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.