Home / 91,545.85-126,291.31-55,261.09

Finding the Fourth Proportional to 91,545.85, 126,291.31 and 55,261.09

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Solution

The fourth proportional to 91,545.85, 126,291.31 and 55,261.09 is: 76,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,545.85 : 126,291.31 = 55,261.09 : x
  2. Step 2: Convert to fraction form
    91,545.85/126,291.31 = 55,261.09/x
  3. Step 3: Cross multiply
    91,545.85x = 126,291.31 × 55,261.09
  4. Step 4: Simplify right side
    91,545.85x = 6,978,995,448.13
  5. Step 5: Solve for x
    x = 6,978,995,448.13/91,545.85
  6. Step 6: Final answer
    x = 76,234.97

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1.5x scale

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.