Home / 74,080.10-102,229.76-40,087.85

Finding the Fourth Proportional to 74,080.10, 102,229.76 and 40,087.85

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Solution

The fourth proportional to 74,080.10, 102,229.76 and 40,087.85 is: 55,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,080.10 : 102,229.76 = 40,087.85 : x
  2. Step 2: Convert to fraction form
    74,080.10/102,229.76 = 40,087.85/x
  3. Step 3: Cross multiply
    74,080.10x = 102,229.76 × 40,087.85
  4. Step 4: Simplify right side
    74,080.10x = 4,098,170,873.49
  5. Step 5: Solve for x
    x = 4,098,170,873.49/74,080.10
  6. Step 6: Final answer
    x = 55,320.80

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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.