Home / 51,687.62-77,431.04-30,288.43

Finding the Fourth Proportional to 51,687.62, 77,431.04 and 30,288.43

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Solution

The fourth proportional to 51,687.62, 77,431.04 and 30,288.43 is: 45,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,687.62 : 77,431.04 = 30,288.43 : x
  2. Step 2: Convert to fraction form
    51,687.62/77,431.04 = 30,288.43/x
  3. Step 3: Cross multiply
    51,687.62x = 77,431.04 × 30,288.43
  4. Step 4: Simplify right side
    51,687.62x = 2,345,264,693.80
  5. Step 5: Solve for x
    x = 2,345,264,693.80/51,687.62
  6. Step 6: Final answer
    x = 45,373.82

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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.