Home / 86,789.18-119,780.16-48,550.85

Finding the Fourth Proportional to 86,789.18, 119,780.16 and 48,550.85

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Solution

The fourth proportional to 86,789.18, 119,780.16 and 48,550.85 is: 67,006.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,789.18 : 119,780.16 = 48,550.85 : x
  2. Step 2: Convert to fraction form
    86,789.18/119,780.16 = 48,550.85/x
  3. Step 3: Cross multiply
    86,789.18x = 119,780.16 × 48,550.85
  4. Step 4: Simplify right side
    86,789.18x = 5,815,428,581.14
  5. Step 5: Solve for x
    x = 5,815,428,581.14/86,789.18
  6. Step 6: Final answer
    x = 67,006.38

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1.5x scale

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.