Home / 40,478.20-60,717.30-38,015.80

Finding the Fourth Proportional to 40,478.20, 60,717.30 and 38,015.80

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Solution

The fourth proportional to 40,478.20, 60,717.30 and 38,015.80 is: 57,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,478.20 : 60,717.30 = 38,015.80 : x
  2. Step 2: Convert to fraction form
    40,478.20/60,717.30 = 38,015.80/x
  3. Step 3: Cross multiply
    40,478.20x = 60,717.30 × 38,015.80
  4. Step 4: Simplify right side
    40,478.20x = 2,308,216,733.34
  5. Step 5: Solve for x
    x = 2,308,216,733.34/40,478.20
  6. Step 6: Final answer
    x = 57,023.70

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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.