Home / 90,700.86-136,097.37-40,770.90

Finding the Fourth Proportional to 90,700.86, 136,097.37 and 40,770.90

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Solution

The fourth proportional to 90,700.86, 136,097.37 and 40,770.90 is: 61,177.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,700.86 : 136,097.37 = 40,770.90 : x
  2. Step 2: Convert to fraction form
    90,700.86/136,097.37 = 40,770.90/x
  3. Step 3: Cross multiply
    90,700.86x = 136,097.37 × 40,770.90
  4. Step 4: Simplify right side
    90,700.86x = 5,548,812,262.53
  5. Step 5: Solve for x
    x = 5,548,812,262.53/90,700.86
  6. Step 6: Final answer
    x = 61,177.06

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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.