Home / 87,878.61-131,864.39-47,926.37

Finding the Fourth Proportional to 87,878.61, 131,864.39 and 47,926.37

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Solution

The fourth proportional to 87,878.61, 131,864.39 and 47,926.37 is: 71,914.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,878.61 : 131,864.39 = 47,926.37 : x
  2. Step 2: Convert to fraction form
    87,878.61/131,864.39 = 47,926.37/x
  3. Step 3: Cross multiply
    87,878.61x = 131,864.39 × 47,926.37
  4. Step 4: Simplify right side
    87,878.61x = 6,319,780,646.01
  5. Step 5: Solve for x
    x = 6,319,780,646.01/87,878.61
  6. Step 6: Final answer
    x = 71,914.89

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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.