Home / 51,988.92-77,982.71-12,545.84

Finding the Fourth Proportional to 51,988.92, 77,982.71 and 12,545.84

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Solution

The fourth proportional to 51,988.92, 77,982.71 and 12,545.84 is: 18,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.92 : 77,982.71 = 12,545.84 : x
  2. Step 2: Convert to fraction form
    51,988.92/77,982.71 = 12,545.84/x
  3. Step 3: Cross multiply
    51,988.92x = 77,982.71 × 12,545.84
  4. Step 4: Simplify right side
    51,988.92x = 978,358,149.78
  5. Step 5: Solve for x
    x = 978,358,149.78/51,988.92
  6. Step 6: Final answer
    x = 18,818.59

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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.