Home / 40,402.18-60,602.31-10,819.99

Finding the Fourth Proportional to 40,402.18, 60,602.31 and 10,819.99

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Solution

The fourth proportional to 40,402.18, 60,602.31 and 10,819.99 is: 16,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,402.18 : 60,602.31 = 10,819.99 : x
  2. Step 2: Convert to fraction form
    40,402.18/60,602.31 = 10,819.99/x
  3. Step 3: Cross multiply
    40,402.18x = 60,602.31 × 10,819.99
  4. Step 4: Simplify right side
    40,402.18x = 655,716,388.18
  5. Step 5: Solve for x
    x = 655,716,388.18/40,402.18
  6. Step 6: Final answer
    x = 16,229.73

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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.