Home / 90,186.24-124,449.76-49,899.04

Finding the Fourth Proportional to 90,186.24, 124,449.76 and 49,899.04

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Solution

The fourth proportional to 90,186.24, 124,449.76 and 49,899.04 is: 68,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,186.24 : 124,449.76 = 49,899.04 : x
  2. Step 2: Convert to fraction form
    90,186.24/124,449.76 = 49,899.04/x
  3. Step 3: Cross multiply
    90,186.24x = 124,449.76 × 49,899.04
  4. Step 4: Simplify right side
    90,186.24x = 6,209,923,552.23
  5. Step 5: Solve for x
    x = 6,209,923,552.23/90,186.24
  6. Step 6: Final answer
    x = 68,856.66

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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.