Home / 91,122.28-136,734.46-38,571.10

Finding the Fourth Proportional to 91,122.28, 136,734.46 and 38,571.10

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Solution

The fourth proportional to 91,122.28, 136,734.46 and 38,571.10 is: 57,878.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,122.28 : 136,734.46 = 38,571.10 : x
  2. Step 2: Convert to fraction form
    91,122.28/136,734.46 = 38,571.10/x
  3. Step 3: Cross multiply
    91,122.28x = 136,734.46 × 38,571.10
  4. Step 4: Simplify right side
    91,122.28x = 5,273,998,530.11
  5. Step 5: Solve for x
    x = 5,273,998,530.11/91,122.28
  6. Step 6: Final answer
    x = 57,878.25

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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.