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Finding the Fourth Proportional to 52,382.62, 72,287.80 and 28,509.29

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Solution

The fourth proportional to 52,382.62, 72,287.80 and 28,509.29 is: 39,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,382.62 : 72,287.80 = 28,509.29 : x
  2. Step 2: Convert to fraction form
    52,382.62/72,287.80 = 28,509.29/x
  3. Step 3: Cross multiply
    52,382.62x = 72,287.80 × 28,509.29
  4. Step 4: Simplify right side
    52,382.62x = 2,060,873,853.66
  5. Step 5: Solve for x
    x = 2,060,873,853.66/52,382.62
  6. Step 6: Final answer
    x = 39,342.70

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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.