Home / 70,929.20-97,881.11-38,664.17

Finding the Fourth Proportional to 70,929.20, 97,881.11 and 38,664.17

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Solution

The fourth proportional to 70,929.20, 97,881.11 and 38,664.17 is: 53,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,929.20 : 97,881.11 = 38,664.17 : x
  2. Step 2: Convert to fraction form
    70,929.20/97,881.11 = 38,664.17/x
  3. Step 3: Cross multiply
    70,929.20x = 97,881.11 × 38,664.17
  4. Step 4: Simplify right side
    70,929.20x = 3,784,491,706.15
  5. Step 5: Solve for x
    x = 3,784,491,706.15/70,929.20
  6. Step 6: Final answer
    x = 53,355.90

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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.