Home / 90,489.36-124,793.49-56,500.95

Finding the Fourth Proportional to 90,489.36, 124,793.49 and 56,500.95

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Solution

The fourth proportional to 90,489.36, 124,793.49 and 56,500.95 is: 77,920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,489.36 : 124,793.49 = 56,500.95 : x
  2. Step 2: Convert to fraction form
    90,489.36/124,793.49 = 56,500.95/x
  3. Step 3: Cross multiply
    90,489.36x = 124,793.49 × 56,500.95
  4. Step 4: Simplify right side
    90,489.36x = 7,050,950,738.82
  5. Step 5: Solve for x
    x = 7,050,950,738.82/90,489.36
  6. Step 6: Final answer
    x = 77,920.22

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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.