Home / 51,463.08-77,131.04-30,381.75

Finding the Fourth Proportional to 51,463.08, 77,131.04 and 30,381.75

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Solution

The fourth proportional to 51,463.08, 77,131.04 and 30,381.75 is: 45,535.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,463.08 : 77,131.04 = 30,381.75 : x
  2. Step 2: Convert to fraction form
    51,463.08/77,131.04 = 30,381.75/x
  3. Step 3: Cross multiply
    51,463.08x = 77,131.04 × 30,381.75
  4. Step 4: Simplify right side
    51,463.08x = 2,343,375,822.61
  5. Step 5: Solve for x
    x = 2,343,375,822.61/51,463.08
  6. Step 6: Final answer
    x = 45,535.09

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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.