Home / 90,451.13-124,830.23-50,177.87

Finding the Fourth Proportional to 90,451.13, 124,830.23 and 50,177.87

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Solution

The fourth proportional to 90,451.13, 124,830.23 and 50,177.87 is: 69,249.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,451.13 : 124,830.23 = 50,177.87 : x
  2. Step 2: Convert to fraction form
    90,451.13/124,830.23 = 50,177.87/x
  3. Step 3: Cross multiply
    90,451.13x = 124,830.23 × 50,177.87
  4. Step 4: Simplify right side
    90,451.13x = 6,263,715,053.01
  5. Step 5: Solve for x
    x = 6,263,715,053.01/90,451.13
  6. Step 6: Final answer
    x = 69,249.72

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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.