Home / 81,635.55-122,336.51-46,502.61

Finding the Fourth Proportional to 81,635.55, 122,336.51 and 46,502.61

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Solution

The fourth proportional to 81,635.55, 122,336.51 and 46,502.61 is: 69,687.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,635.55 : 122,336.51 = 46,502.61 : x
  2. Step 2: Convert to fraction form
    81,635.55/122,336.51 = 46,502.61/x
  3. Step 3: Cross multiply
    81,635.55x = 122,336.51 × 46,502.61
  4. Step 4: Simplify right side
    81,635.55x = 5,688,966,780.78
  5. Step 5: Solve for x
    x = 5,688,966,780.78/81,635.55
  6. Step 6: Final answer
    x = 69,687.37

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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.