Home / 91,217.70-125,896.80-54,426.28

Finding the Fourth Proportional to 91,217.70, 125,896.80 and 54,426.28

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Solution

The fourth proportional to 91,217.70, 125,896.80 and 54,426.28 is: 75,118.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,217.70 : 125,896.80 = 54,426.28 : x
  2. Step 2: Convert to fraction form
    91,217.70/125,896.80 = 54,426.28/x
  3. Step 3: Cross multiply
    91,217.70x = 125,896.80 × 54,426.28
  4. Step 4: Simplify right side
    91,217.70x = 6,852,094,487.90
  5. Step 5: Solve for x
    x = 6,852,094,487.90/91,217.70
  6. Step 6: Final answer
    x = 75,118.04

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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.