Home / 81,688.52-122,581.08-44,247.69

Finding the Fourth Proportional to 81,688.52, 122,581.08 and 44,247.69

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Solution

The fourth proportional to 81,688.52, 122,581.08 and 44,247.69 is: 66,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,688.52 : 122,581.08 = 44,247.69 : x
  2. Step 2: Convert to fraction form
    81,688.52/122,581.08 = 44,247.69/x
  3. Step 3: Cross multiply
    81,688.52x = 122,581.08 × 44,247.69
  4. Step 4: Simplify right side
    81,688.52x = 5,423,929,627.71
  5. Step 5: Solve for x
    x = 5,423,929,627.71/81,688.52
  6. Step 6: Final answer
    x = 66,397.70

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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.