Home / 91,126.72-125,749-50,291.22

Finding the Fourth Proportional to 91,126.72, 125,749 and 50,291.22

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Solution

The fourth proportional to 91,126.72, 125,749 and 50,291.22 is: 69,398.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,126.72 : 125,749 = 50,291.22 : x
  2. Step 2: Convert to fraction form
    91,126.72/125,749 = 50,291.22/x
  3. Step 3: Cross multiply
    91,126.72x = 125,749 × 50,291.22
  4. Step 4: Simplify right side
    91,126.72x = 6,324,070,623.78
  5. Step 5: Solve for x
    x = 6,324,070,623.78/91,126.72
  6. Step 6: Final answer
    x = 69,398.64

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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.