Home / 56,320.38-77,642.01-38,392.38

Finding the Fourth Proportional to 56,320.38, 77,642.01 and 38,392.38

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Solution

The fourth proportional to 56,320.38, 77,642.01 and 38,392.38 is: 52,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,320.38 : 77,642.01 = 38,392.38 : x
  2. Step 2: Convert to fraction form
    56,320.38/77,642.01 = 38,392.38/x
  3. Step 3: Cross multiply
    56,320.38x = 77,642.01 × 38,392.38
  4. Step 4: Simplify right side
    56,320.38x = 2,980,861,551.88
  5. Step 5: Solve for x
    x = 2,980,861,551.88/56,320.38
  6. Step 6: Final answer
    x = 52,926.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.