Home / 91,834.20-137,832.30-54,347.40

Finding the Fourth Proportional to 91,834.20, 137,832.30 and 54,347.40

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Solution

The fourth proportional to 91,834.20, 137,832.30 and 54,347.40 is: 81,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,834.20 : 137,832.30 = 54,347.40 : x
  2. Step 2: Convert to fraction form
    91,834.20/137,832.30 = 54,347.40/x
  3. Step 3: Cross multiply
    91,834.20x = 137,832.30 × 54,347.40
  4. Step 4: Simplify right side
    91,834.20x = 7,490,827,141.02
  5. Step 5: Solve for x
    x = 7,490,827,141.02/91,834.20
  6. Step 6: Final answer
    x = 81,569.04

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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.