Home / 40,482.05-60,727.13-12,401.78

Finding the Fourth Proportional to 40,482.05, 60,727.13 and 12,401.78

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Solution

The fourth proportional to 40,482.05, 60,727.13 and 12,401.78 is: 18,603.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,482.05 : 60,727.13 = 12,401.78 : x
  2. Step 2: Convert to fraction form
    40,482.05/60,727.13 = 12,401.78/x
  3. Step 3: Cross multiply
    40,482.05x = 60,727.13 × 12,401.78
  4. Step 4: Simplify right side
    40,482.05x = 753,124,506.29
  5. Step 5: Solve for x
    x = 753,124,506.29/40,482.05
  6. Step 6: Final answer
    x = 18,603.91

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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.