Home / 90,239.50-124,489.14-58,418.65

Finding the Fourth Proportional to 90,239.50, 124,489.14 and 58,418.65

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Solution

The fourth proportional to 90,239.50, 124,489.14 and 58,418.65 is: 80,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,239.50 : 124,489.14 = 58,418.65 : x
  2. Step 2: Convert to fraction form
    90,239.50/124,489.14 = 58,418.65/x
  3. Step 3: Cross multiply
    90,239.50x = 124,489.14 × 58,418.65
  4. Step 4: Simplify right side
    90,239.50x = 7,272,487,498.46
  5. Step 5: Solve for x
    x = 7,272,487,498.46/90,239.50
  6. Step 6: Final answer
    x = 80,590.96

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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.