Home / 90,117.06-124,359.33-49,829.78

Finding the Fourth Proportional to 90,117.06, 124,359.33 and 49,829.78

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Solution

The fourth proportional to 90,117.06, 124,359.33 and 49,829.78 is: 68,763.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,117.06 : 124,359.33 = 49,829.78 : x
  2. Step 2: Convert to fraction form
    90,117.06/124,359.33 = 49,829.78/x
  3. Step 3: Cross multiply
    90,117.06x = 124,359.33 × 49,829.78
  4. Step 4: Simplify right side
    90,117.06x = 6,196,798,552.61
  5. Step 5: Solve for x
    x = 6,196,798,552.61/90,117.06
  6. Step 6: Final answer
    x = 68,763.88

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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.