Home / 89,451.95-123,455.37-57,713.18

Finding the Fourth Proportional to 89,451.95, 123,455.37 and 57,713.18

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Solution

The fourth proportional to 89,451.95, 123,455.37 and 57,713.18 is: 79,651.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,451.95 : 123,455.37 = 57,713.18 : x
  2. Step 2: Convert to fraction form
    89,451.95/123,455.37 = 57,713.18/x
  3. Step 3: Cross multiply
    89,451.95x = 123,455.37 × 57,713.18
  4. Step 4: Simplify right side
    89,451.95x = 7,125,001,990.78
  5. Step 5: Solve for x
    x = 7,125,001,990.78/89,451.95
  6. Step 6: Final answer
    x = 79,651.72

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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.