Home / 89,658.36-123,729.40-49,373.55

Finding the Fourth Proportional to 89,658.36, 123,729.40 and 49,373.55

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Solution

The fourth proportional to 89,658.36, 123,729.40 and 49,373.55 is: 68,135.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,658.36 : 123,729.40 = 49,373.55 : x
  2. Step 2: Convert to fraction form
    89,658.36/123,729.40 = 49,373.55/x
  3. Step 3: Cross multiply
    89,658.36x = 123,729.40 × 49,373.55
  4. Step 4: Simplify right side
    89,658.36x = 6,108,959,717.37
  5. Step 5: Solve for x
    x = 6,108,959,717.37/89,658.36
  6. Step 6: Final answer
    x = 68,135.97

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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.