Home / 91,488.20-137,232.30-54,066.20

Finding the Fourth Proportional to 91,488.20, 137,232.30 and 54,066.20

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Solution

The fourth proportional to 91,488.20, 137,232.30 and 54,066.20 is: 81,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,488.20 : 137,232.30 = 54,066.20 : x
  2. Step 2: Convert to fraction form
    91,488.20/137,232.30 = 54,066.20/x
  3. Step 3: Cross multiply
    91,488.20x = 137,232.30 × 54,066.20
  4. Step 4: Simplify right side
    91,488.20x = 7,419,628,978.26
  5. Step 5: Solve for x
    x = 7,419,628,978.26/91,488.20
  6. Step 6: Final answer
    x = 81,099.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.