Home / 91,433.76-126,190.26-51,149.76

Finding the Fourth Proportional to 91,433.76, 126,190.26 and 51,149.76

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Solution

The fourth proportional to 91,433.76, 126,190.26 and 51,149.76 is: 70,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,433.76 : 126,190.26 = 51,149.76 : x
  2. Step 2: Convert to fraction form
    91,433.76/126,190.26 = 51,149.76/x
  3. Step 3: Cross multiply
    91,433.76x = 126,190.26 × 51,149.76
  4. Step 4: Simplify right side
    91,433.76x = 6,454,601,513.34
  5. Step 5: Solve for x
    x = 6,454,601,513.34/91,433.76
  6. Step 6: Final answer
    x = 70,593.20

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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.