Home / 90,537.50-124,935.89-50,251.28

Finding the Fourth Proportional to 90,537.50, 124,935.89 and 50,251.28

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Solution

The fourth proportional to 90,537.50, 124,935.89 and 50,251.28 is: 69,343.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,537.50 : 124,935.89 = 50,251.28 : x
  2. Step 2: Convert to fraction form
    90,537.50/124,935.89 = 50,251.28/x
  3. Step 3: Cross multiply
    90,537.50x = 124,935.89 × 50,251.28
  4. Step 4: Simplify right side
    90,537.50x = 6,278,187,514.50
  5. Step 5: Solve for x
    x = 6,278,187,514.50/90,537.50
  6. Step 6: Final answer
    x = 69,343.50

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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.