Home / 57,139.32-78,839.22-36,732.06

Finding the Fourth Proportional to 57,139.32, 78,839.22 and 36,732.06

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Solution

The fourth proportional to 57,139.32, 78,839.22 and 36,732.06 is: 50,681.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,139.32 : 78,839.22 = 36,732.06 : x
  2. Step 2: Convert to fraction form
    57,139.32/78,839.22 = 36,732.06/x
  3. Step 3: Cross multiply
    57,139.32x = 78,839.22 × 36,732.06
  4. Step 4: Simplify right side
    57,139.32x = 2,895,926,959.39
  5. Step 5: Solve for x
    x = 2,895,926,959.39/57,139.32
  6. Step 6: Final answer
    x = 50,681.86

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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.