Home / 83,387.25-115,092.27-53,165.61

Finding the Fourth Proportional to 83,387.25, 115,092.27 and 53,165.61

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Solution

The fourth proportional to 83,387.25, 115,092.27 and 53,165.61 is: 73,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,387.25 : 115,092.27 = 53,165.61 : x
  2. Step 2: Convert to fraction form
    83,387.25/115,092.27 = 53,165.61/x
  3. Step 3: Cross multiply
    83,387.25x = 115,092.27 × 53,165.61
  4. Step 4: Simplify right side
    83,387.25x = 6,118,950,740.83
  5. Step 5: Solve for x
    x = 6,118,950,740.83/83,387.25
  6. Step 6: Final answer
    x = 73,379.93

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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.