Home / 91,963.20-126,899.76-51,670.56

Finding the Fourth Proportional to 91,963.20, 126,899.76 and 51,670.56

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Solution

The fourth proportional to 91,963.20, 126,899.76 and 51,670.56 is: 71,300.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,963.20 : 126,899.76 = 51,670.56 : x
  2. Step 2: Convert to fraction form
    91,963.20/126,899.76 = 51,670.56/x
  3. Step 3: Cross multiply
    91,963.20x = 126,899.76 × 51,670.56
  4. Step 4: Simplify right side
    91,963.20x = 6,556,981,663.07
  5. Step 5: Solve for x
    x = 6,556,981,663.07/91,963.20
  6. Step 6: Final answer
    x = 71,300.06

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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.