Home / 261,055.20-391,597.68-74,052

Finding the Fourth Proportional to 261,055.20, 391,597.68 and 74,052

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Solution

The fourth proportional to 261,055.20, 391,597.68 and 74,052 is: 111,082.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,055.20 : 391,597.68 = 74,052 : x
  2. Step 2: Convert to fraction form
    261,055.20/391,597.68 = 74,052/x
  3. Step 3: Cross multiply
    261,055.20x = 391,597.68 × 74,052
  4. Step 4: Simplify right side
    261,055.20x = 28,998,591,399.36
  5. Step 5: Solve for x
    x = 28,998,591,399.36/261,055.20
  6. Step 6: Final answer
    x = 111,082.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.