Home / 51,979.50-77,974.11-16,909.74

Finding the Fourth Proportional to 51,979.50, 77,974.11 and 16,909.74

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Solution

The fourth proportional to 51,979.50, 77,974.11 and 16,909.74 is: 25,366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,979.50 : 77,974.11 = 16,909.74 : x
  2. Step 2: Convert to fraction form
    51,979.50/77,974.11 = 16,909.74/x
  3. Step 3: Cross multiply
    51,979.50x = 77,974.11 × 16,909.74
  4. Step 4: Simplify right side
    51,979.50x = 1,318,521,926.83
  5. Step 5: Solve for x
    x = 1,318,521,926.83/51,979.50
  6. Step 6: Final answer
    x = 25,366.19

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1.5x scale

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.