Home / 91,391.80-126,121.02-53,160.52

Finding the Fourth Proportional to 91,391.80, 126,121.02 and 53,160.52

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Solution

The fourth proportional to 91,391.80, 126,121.02 and 53,160.52 is: 73,361.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,391.80 : 126,121.02 = 53,160.52 : x
  2. Step 2: Convert to fraction form
    91,391.80/126,121.02 = 53,160.52/x
  3. Step 3: Cross multiply
    91,391.80x = 126,121.02 × 53,160.52
  4. Step 4: Simplify right side
    91,391.80x = 6,704,659,006.13
  5. Step 5: Solve for x
    x = 6,704,659,006.13/91,391.80
  6. Step 6: Final answer
    x = 73,361.71

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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.