Home / 90,239.90-124,532.15-49,957.38

Finding the Fourth Proportional to 90,239.90, 124,532.15 and 49,957.38

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Solution

The fourth proportional to 90,239.90, 124,532.15 and 49,957.38 is: 68,941.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,239.90 : 124,532.15 = 49,957.38 : x
  2. Step 2: Convert to fraction form
    90,239.90/124,532.15 = 49,957.38/x
  3. Step 3: Cross multiply
    90,239.90x = 124,532.15 × 49,957.38
  4. Step 4: Simplify right side
    90,239.90x = 6,221,299,689.98
  5. Step 5: Solve for x
    x = 6,221,299,689.98/90,239.90
  6. Step 6: Final answer
    x = 68,941.79

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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.