Home / 91,766.08-126,556.56-66,265.84

Finding the Fourth Proportional to 91,766.08, 126,556.56 and 66,265.84

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Solution

The fourth proportional to 91,766.08, 126,556.56 and 66,265.84 is: 91,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,766.08 : 126,556.56 = 66,265.84 : x
  2. Step 2: Convert to fraction form
    91,766.08/126,556.56 = 66,265.84/x
  3. Step 3: Cross multiply
    91,766.08x = 126,556.56 × 66,265.84
  4. Step 4: Simplify right side
    91,766.08x = 8,386,376,755.91
  5. Step 5: Solve for x
    x = 8,386,376,755.91/91,766.08
  6. Step 6: Final answer
    x = 91,388.63

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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.