Home / 89,753.36-123,857.49-48,918.78

Finding the Fourth Proportional to 89,753.36, 123,857.49 and 48,918.78

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Solution

The fourth proportional to 89,753.36, 123,857.49 and 48,918.78 is: 67,506.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,753.36 : 123,857.49 = 48,918.78 : x
  2. Step 2: Convert to fraction form
    89,753.36/123,857.49 = 48,918.78/x
  3. Step 3: Cross multiply
    89,753.36x = 123,857.49 × 48,918.78
  4. Step 4: Simplify right side
    89,753.36x = 6,058,957,304.66
  5. Step 5: Solve for x
    x = 6,058,957,304.66/89,753.36
  6. Step 6: Final answer
    x = 67,506.75

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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.