Home / 90,734.09-125,220.06-54,436.90

Finding the Fourth Proportional to 90,734.09, 125,220.06 and 54,436.90

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Solution

The fourth proportional to 90,734.09, 125,220.06 and 54,436.90 is: 75,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,734.09 : 125,220.06 = 54,436.90 : x
  2. Step 2: Convert to fraction form
    90,734.09/125,220.06 = 54,436.90/x
  3. Step 3: Cross multiply
    90,734.09x = 125,220.06 × 54,436.90
  4. Step 4: Simplify right side
    90,734.09x = 6,816,591,884.21
  5. Step 5: Solve for x
    x = 6,816,591,884.21/90,734.09
  6. Step 6: Final answer
    x = 75,127.13

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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.