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Finding the Fourth Proportional to 63,073.89, 87,047.87 and 47,130.66

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Solution

The fourth proportional to 63,073.89, 87,047.87 and 47,130.66 is: 65,044.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,073.89 : 87,047.87 = 47,130.66 : x
  2. Step 2: Convert to fraction form
    63,073.89/87,047.87 = 47,130.66/x
  3. Step 3: Cross multiply
    63,073.89x = 87,047.87 × 47,130.66
  4. Step 4: Simplify right side
    63,073.89x = 4,102,623,329.04
  5. Step 5: Solve for x
    x = 4,102,623,329.04/63,073.89
  6. Step 6: Final answer
    x = 65,044.72

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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.