Home / 79,788.76-119,194.91-57,411.16

Finding the Fourth Proportional to 79,788.76, 119,194.91 and 57,411.16

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Solution

The fourth proportional to 79,788.76, 119,194.91 and 57,411.16 is: 85,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,788.76 : 119,194.91 = 57,411.16 : x
  2. Step 2: Convert to fraction form
    79,788.76/119,194.91 = 57,411.16/x
  3. Step 3: Cross multiply
    79,788.76x = 119,194.91 × 57,411.16
  4. Step 4: Simplify right side
    79,788.76x = 6,843,118,049.20
  5. Step 5: Solve for x
    x = 6,843,118,049.20/79,788.76
  6. Step 6: Final answer
    x = 85,765.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.