Home / 72,287.55-108,391.82-40,276.35

Finding the Fourth Proportional to 72,287.55, 108,391.82 and 40,276.35

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Solution

The fourth proportional to 72,287.55, 108,391.82 and 40,276.35 is: 60,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,287.55 : 108,391.82 = 40,276.35 : x
  2. Step 2: Convert to fraction form
    72,287.55/108,391.82 = 40,276.35/x
  3. Step 3: Cross multiply
    72,287.55x = 108,391.82 × 40,276.35
  4. Step 4: Simplify right side
    72,287.55x = 4,365,626,678.08
  5. Step 5: Solve for x
    x = 4,365,626,678.08/72,287.55
  6. Step 6: Final answer
    x = 60,392.51

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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.