Home / 72,540.11-108,810.27-39,275.84

Finding the Fourth Proportional to 72,540.11, 108,810.27 and 39,275.84

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Solution

The fourth proportional to 72,540.11, 108,810.27 and 39,275.84 is: 58,913.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,540.11 : 108,810.27 = 39,275.84 : x
  2. Step 2: Convert to fraction form
    72,540.11/108,810.27 = 39,275.84/x
  3. Step 3: Cross multiply
    72,540.11x = 108,810.27 × 39,275.84
  4. Step 4: Simplify right side
    72,540.11x = 4,273,615,026.90
  5. Step 5: Solve for x
    x = 4,273,615,026.90/72,540.11
  6. Step 6: Final answer
    x = 58,913.82

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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.