Home / 51,490.50-77,235.75-20,325.75

Finding the Fourth Proportional to 51,490.50, 77,235.75 and 20,325.75

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Solution

The fourth proportional to 51,490.50, 77,235.75 and 20,325.75 is: 30,488.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,490.50 : 77,235.75 = 20,325.75 : x
  2. Step 2: Convert to fraction form
    51,490.50/77,235.75 = 20,325.75/x
  3. Step 3: Cross multiply
    51,490.50x = 77,235.75 × 20,325.75
  4. Step 4: Simplify right side
    51,490.50x = 1,569,874,545.56
  5. Step 5: Solve for x
    x = 1,569,874,545.56/51,490.50
  6. Step 6: Final answer
    x = 30,488.63

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Similar ratio
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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.