Home / 90,215.86-124,496.97-49,929.70

Finding the Fourth Proportional to 90,215.86, 124,496.97 and 49,929.70

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Solution

The fourth proportional to 90,215.86, 124,496.97 and 49,929.70 is: 68,902.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,215.86 : 124,496.97 = 49,929.70 : x
  2. Step 2: Convert to fraction form
    90,215.86/124,496.97 = 49,929.70/x
  3. Step 3: Cross multiply
    90,215.86x = 124,496.97 × 49,929.70
  4. Step 4: Simplify right side
    90,215.86x = 6,216,096,363.01
  5. Step 5: Solve for x
    x = 6,216,096,363.01/90,215.86
  6. Step 6: Final answer
    x = 68,902.48

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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.