Home / 72,542.46-108,748.11-25,784.40

Finding the Fourth Proportional to 72,542.46, 108,748.11 and 25,784.40

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Solution

The fourth proportional to 72,542.46, 108,748.11 and 25,784.40 is: 38,653.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,542.46 : 108,748.11 = 25,784.40 : x
  2. Step 2: Convert to fraction form
    72,542.46/108,748.11 = 25,784.40/x
  3. Step 3: Cross multiply
    72,542.46x = 108,748.11 × 25,784.40
  4. Step 4: Simplify right side
    72,542.46x = 2,804,004,767.48
  5. Step 5: Solve for x
    x = 2,804,004,767.48/72,542.46
  6. Step 6: Final answer
    x = 38,653.29

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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.