Home / 78,187.83-107,898.45-43,732.19

Finding the Fourth Proportional to 78,187.83, 107,898.45 and 43,732.19

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Solution

The fourth proportional to 78,187.83, 107,898.45 and 43,732.19 is: 60,349.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,187.83 : 107,898.45 = 43,732.19 : x
  2. Step 2: Convert to fraction form
    78,187.83/107,898.45 = 43,732.19/x
  3. Step 3: Cross multiply
    78,187.83x = 107,898.45 × 43,732.19
  4. Step 4: Simplify right side
    78,187.83x = 4,718,634,976.61
  5. Step 5: Solve for x
    x = 4,718,634,976.61/78,187.83
  6. Step 6: Final answer
    x = 60,349.99

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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.