Home / 91,691,731.53-126,535,256.55-49,876,157.88

Finding the Fourth Proportional to 91,691,731.53, 126,535,256.55 and 49,876,157.88

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Solution

The fourth proportional to 91,691,731.53, 126,535,256.55 and 49,876,157.88 is: 68,829,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,691,731.53 : 126,535,256.55 = 49,876,157.88 : x
  2. Step 2: Convert to fraction form
    91,691,731.53/126,535,256.55 = 49,876,157.88/x
  3. Step 3: Cross multiply
    91,691,731.53x = 126,535,256.55 × 49,876,157.88
  4. Step 4: Simplify right side
    91,691,731.53x = 6,311,092,433,074,104
  5. Step 5: Solve for x
    x = 6,311,092,433,074,104/91,691,731.53
  6. Step 6: Final answer
    x = 68,829,460.71

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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.