Home / 91,854.55-126,749.49-51,572.75

Finding the Fourth Proportional to 91,854.55, 126,749.49 and 51,572.75

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Solution

The fourth proportional to 91,854.55, 126,749.49 and 51,572.75 is: 71,164.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,854.55 : 126,749.49 = 51,572.75 : x
  2. Step 2: Convert to fraction form
    91,854.55/126,749.49 = 51,572.75/x
  3. Step 3: Cross multiply
    91,854.55x = 126,749.49 × 51,572.75
  4. Step 4: Simplify right side
    91,854.55x = 6,536,819,126.65
  5. Step 5: Solve for x
    x = 6,536,819,126.65/91,854.55
  6. Step 6: Final answer
    x = 71,164.89

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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.