Home / 89,808.05-123,992.88-55,862.74

Finding the Fourth Proportional to 89,808.05, 123,992.88 and 55,862.74

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Solution

The fourth proportional to 89,808.05, 123,992.88 and 55,862.74 is: 77,126.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,808.05 : 123,992.88 = 55,862.74 : x
  2. Step 2: Convert to fraction form
    89,808.05/123,992.88 = 55,862.74/x
  3. Step 3: Cross multiply
    89,808.05x = 123,992.88 × 55,862.74
  4. Step 4: Simplify right side
    89,808.05x = 6,926,581,614.07
  5. Step 5: Solve for x
    x = 6,926,581,614.07/89,808.05
  6. Step 6: Final answer
    x = 77,126.51

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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.