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Finding the Fourth Proportional to 63,347.84, 87,348.48 and 47,381.12

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Solution

The fourth proportional to 63,347.84, 87,348.48 and 47,381.12 is: 65,332.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,347.84 : 87,348.48 = 47,381.12 : x
  2. Step 2: Convert to fraction form
    63,347.84/87,348.48 = 47,381.12/x
  3. Step 3: Cross multiply
    63,347.84x = 87,348.48 × 47,381.12
  4. Step 4: Simplify right side
    63,347.84x = 4,138,668,812.70
  5. Step 5: Solve for x
    x = 4,138,668,812.70/63,347.84
  6. Step 6: Final answer
    x = 65,332.44

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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.