Home / 40,139.93-55,402.31-26,711.75

Finding the Fourth Proportional to 40,139.93, 55,402.31 and 26,711.75

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Solution

The fourth proportional to 40,139.93, 55,402.31 and 26,711.75 is: 36,868.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.93 : 55,402.31 = 26,711.75 : x
  2. Step 2: Convert to fraction form
    40,139.93/55,402.31 = 26,711.75/x
  3. Step 3: Cross multiply
    40,139.93x = 55,402.31 × 26,711.75
  4. Step 4: Simplify right side
    40,139.93x = 1,479,892,520.58
  5. Step 5: Solve for x
    x = 1,479,892,520.58/40,139.93
  6. Step 6: Final answer
    x = 36,868.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.