Home / 89,067.24-123,149.10-77,857.08

Finding the Fourth Proportional to 89,067.24, 123,149.10 and 77,857.08

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Solution

The fourth proportional to 89,067.24, 123,149.10 and 77,857.08 is: 107,649.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,067.24 : 123,149.10 = 77,857.08 : x
  2. Step 2: Convert to fraction form
    89,067.24/123,149.10 = 77,857.08/x
  3. Step 3: Cross multiply
    89,067.24x = 123,149.10 × 77,857.08
  4. Step 4: Simplify right side
    89,067.24x = 9,588,029,330.63
  5. Step 5: Solve for x
    x = 9,588,029,330.63/89,067.24
  6. Step 6: Final answer
    x = 107,649.34

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1.5x scale

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.