Home / 74,079.92-102,229.50-40,087.67

Finding the Fourth Proportional to 74,079.92, 102,229.50 and 40,087.67

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Solution

The fourth proportional to 74,079.92, 102,229.50 and 40,087.67 is: 55,320.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,079.92 : 102,229.50 = 40,087.67 : x
  2. Step 2: Convert to fraction form
    74,079.92/102,229.50 = 40,087.67/x
  3. Step 3: Cross multiply
    74,079.92x = 102,229.50 × 40,087.67
  4. Step 4: Simplify right side
    74,079.92x = 4,098,141,949.12
  5. Step 5: Solve for x
    x = 4,098,141,949.12/74,079.92
  6. Step 6: Final answer
    x = 55,320.55

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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.