Home / 91,002,080.70-136,503,121.05-60,391,079.10

Finding the Fourth Proportional to 91,002,080.70, 136,503,121.05 and 60,391,079.10

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Solution

The fourth proportional to 91,002,080.70, 136,503,121.05 and 60,391,079.10 is: 90,586,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,002,080.70 : 136,503,121.05 = 60,391,079.10 : x
  2. Step 2: Convert to fraction form
    91,002,080.70/136,503,121.05 = 60,391,079.10/x
  3. Step 3: Cross multiply
    91,002,080.70x = 136,503,121.05 × 60,391,079.10
  4. Step 4: Simplify right side
    91,002,080.70x = 8,243,570,780,727,426
  5. Step 5: Solve for x
    x = 8,243,570,780,727,426/91,002,080.70
  6. Step 6: Final answer
    x = 90,586,618.65

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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.