Home / 51,376.20-77,015.10-21,753.30

Finding the Fourth Proportional to 51,376.20, 77,015.10 and 21,753.30

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Solution

The fourth proportional to 51,376.20, 77,015.10 and 21,753.30 is: 32,609.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,376.20 : 77,015.10 = 21,753.30 : x
  2. Step 2: Convert to fraction form
    51,376.20/77,015.10 = 21,753.30/x
  3. Step 3: Cross multiply
    51,376.20x = 77,015.10 × 21,753.30
  4. Step 4: Simplify right side
    51,376.20x = 1,675,332,574.83
  5. Step 5: Solve for x
    x = 1,675,332,574.83/51,376.20
  6. Step 6: Final answer
    x = 32,609.12

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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.