Home / 90,738.19-125,215.42-49,901.97

Finding the Fourth Proportional to 90,738.19, 125,215.42 and 49,901.97

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Solution

The fourth proportional to 90,738.19, 125,215.42 and 49,901.97 is: 68,862.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,738.19 : 125,215.42 = 49,901.97 : x
  2. Step 2: Convert to fraction form
    90,738.19/125,215.42 = 49,901.97/x
  3. Step 3: Cross multiply
    90,738.19x = 125,215.42 × 49,901.97
  4. Step 4: Simplify right side
    90,738.19x = 6,248,496,132.38
  5. Step 5: Solve for x
    x = 6,248,496,132.38/90,738.19
  6. Step 6: Final answer
    x = 68,862.91

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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.