Home / 40,423.80-60,614.10-14,129.40

Finding the Fourth Proportional to 40,423.80, 60,614.10 and 14,129.40

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Solution

The fourth proportional to 40,423.80, 60,614.10 and 14,129.40 is: 21,186.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,423.80 : 60,614.10 = 14,129.40 : x
  2. Step 2: Convert to fraction form
    40,423.80/60,614.10 = 14,129.40/x
  3. Step 3: Cross multiply
    40,423.80x = 60,614.10 × 14,129.40
  4. Step 4: Simplify right side
    40,423.80x = 856,440,864.54
  5. Step 5: Solve for x
    x = 856,440,864.54/40,423.80
  6. Step 6: Final answer
    x = 21,186.55

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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.