Home / 91,736.09-126,537.53-66,279.86

Finding the Fourth Proportional to 91,736.09, 126,537.53 and 66,279.86

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Solution

The fourth proportional to 91,736.09, 126,537.53 and 66,279.86 is: 91,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,736.09 : 126,537.53 = 66,279.86 : x
  2. Step 2: Convert to fraction form
    91,736.09/126,537.53 = 66,279.86/x
  3. Step 3: Cross multiply
    91,736.09x = 126,537.53 × 66,279.86
  4. Step 4: Simplify right side
    91,736.09x = 8,386,889,773.15
  5. Step 5: Solve for x
    x = 8,386,889,773.15/91,736.09
  6. Step 6: Final answer
    x = 91,424.10

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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.