Home / 47,688.18-71,489.72-18,085.92

Finding the Fourth Proportional to 47,688.18, 71,489.72 and 18,085.92

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Solution

The fourth proportional to 47,688.18, 71,489.72 and 18,085.92 is: 27,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,688.18 : 71,489.72 = 18,085.92 : x
  2. Step 2: Convert to fraction form
    47,688.18/71,489.72 = 18,085.92/x
  3. Step 3: Cross multiply
    47,688.18x = 71,489.72 × 18,085.92
  4. Step 4: Simplify right side
    47,688.18x = 1,292,957,356.74
  5. Step 5: Solve for x
    x = 1,292,957,356.74/47,688.18
  6. Step 6: Final answer
    x = 27,112.74

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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.