Home / 89,148.10-123,008.24-57,309.70

Finding the Fourth Proportional to 89,148.10, 123,008.24 and 57,309.70

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Solution

The fourth proportional to 89,148.10, 123,008.24 and 57,309.70 is: 79,077.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,148.10 : 123,008.24 = 57,309.70 : x
  2. Step 2: Convert to fraction form
    89,148.10/123,008.24 = 57,309.70/x
  3. Step 3: Cross multiply
    89,148.10x = 123,008.24 × 57,309.70
  4. Step 4: Simplify right side
    89,148.10x = 7,049,565,331.93
  5. Step 5: Solve for x
    x = 7,049,565,331.93/89,148.10
  6. Step 6: Final answer
    x = 79,077.01

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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.