Home / 90,706.56-125,177.76-54,903.12

Finding the Fourth Proportional to 90,706.56, 125,177.76 and 54,903.12

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Solution

The fourth proportional to 90,706.56, 125,177.76 and 54,903.12 is: 75,767.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,706.56 : 125,177.76 = 54,903.12 : x
  2. Step 2: Convert to fraction form
    90,706.56/125,177.76 = 54,903.12/x
  3. Step 3: Cross multiply
    90,706.56x = 125,177.76 × 54,903.12
  4. Step 4: Simplify right side
    90,706.56x = 6,872,649,578.61
  5. Step 5: Solve for x
    x = 6,872,649,578.61/90,706.56
  6. Step 6: Final answer
    x = 75,767.94

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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.