Home / 91,661.43-126,456.21-53,415.26

Finding the Fourth Proportional to 91,661.43, 126,456.21 and 53,415.26

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Solution

The fourth proportional to 91,661.43, 126,456.21 and 53,415.26 is: 73,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,661.43 : 126,456.21 = 53,415.26 : x
  2. Step 2: Convert to fraction form
    91,661.43/126,456.21 = 53,415.26/x
  3. Step 3: Cross multiply
    91,661.43x = 126,456.21 × 53,415.26
  4. Step 4: Simplify right side
    91,661.43x = 6,754,690,703.48
  5. Step 5: Solve for x
    x = 6,754,690,703.48/91,661.43
  6. Step 6: Final answer
    x = 73,691.74

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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.