Home / 90,204.18-124,479.90-49,915.52

Finding the Fourth Proportional to 90,204.18, 124,479.90 and 49,915.52

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Solution

The fourth proportional to 90,204.18, 124,479.90 and 49,915.52 is: 68,882.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,204.18 : 124,479.90 = 49,915.52 : x
  2. Step 2: Convert to fraction form
    90,204.18/124,479.90 = 49,915.52/x
  3. Step 3: Cross multiply
    90,204.18x = 124,479.90 × 49,915.52
  4. Step 4: Simplify right side
    90,204.18x = 6,213,479,249.25
  5. Step 5: Solve for x
    x = 6,213,479,249.25/90,204.18
  6. Step 6: Final answer
    x = 68,882.39

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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.