Home / 91,356.26-126,073.30-51,065.70

Finding the Fourth Proportional to 91,356.26, 126,073.30 and 51,065.70

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Solution

The fourth proportional to 91,356.26, 126,073.30 and 51,065.70 is: 70,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,356.26 : 126,073.30 = 51,065.70 : x
  2. Step 2: Convert to fraction form
    91,356.26/126,073.30 = 51,065.70/x
  3. Step 3: Cross multiply
    91,356.26x = 126,073.30 × 51,065.70
  4. Step 4: Simplify right side
    91,356.26x = 6,438,021,315.81
  5. Step 5: Solve for x
    x = 6,438,021,315.81/91,356.26
  6. Step 6: Final answer
    x = 70,471.59

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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.