Home / 91,743.24-126,520.38-61,103.64

Finding the Fourth Proportional to 91,743.24, 126,520.38 and 61,103.64

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Solution

The fourth proportional to 91,743.24, 126,520.38 and 61,103.64 is: 84,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,743.24 : 126,520.38 = 61,103.64 : x
  2. Step 2: Convert to fraction form
    91,743.24/126,520.38 = 61,103.64/x
  3. Step 3: Cross multiply
    91,743.24x = 126,520.38 × 61,103.64
  4. Step 4: Simplify right side
    91,743.24x = 7,730,855,752.18
  5. Step 5: Solve for x
    x = 7,730,855,752.18/91,743.24
  6. Step 6: Final answer
    x = 84,266.22

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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.