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Finding the Fourth Proportional to 53,304.90, 79,943.40 and 15,854.88

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Solution

The fourth proportional to 53,304.90, 79,943.40 and 15,854.88 is: 23,778.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,304.90 : 79,943.40 = 15,854.88 : x
  2. Step 2: Convert to fraction form
    53,304.90/79,943.40 = 15,854.88/x
  3. Step 3: Cross multiply
    53,304.90x = 79,943.40 × 15,854.88
  4. Step 4: Simplify right side
    53,304.90x = 1,267,493,013.79
  5. Step 5: Solve for x
    x = 1,267,493,013.79/53,304.90
  6. Step 6: Final answer
    x = 23,778.17

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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.