Home / 45,310.50-68,002.20-23,129.78

Finding the Fourth Proportional to 45,310.50, 68,002.20 and 23,129.78

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Solution

The fourth proportional to 45,310.50, 68,002.20 and 23,129.78 is: 34,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,310.50 : 68,002.20 = 23,129.78 : x
  2. Step 2: Convert to fraction form
    45,310.50/68,002.20 = 23,129.78/x
  3. Step 3: Cross multiply
    45,310.50x = 68,002.20 × 23,129.78
  4. Step 4: Simplify right side
    45,310.50x = 1,572,875,585.51
  5. Step 5: Solve for x
    x = 1,572,875,585.51/45,310.50
  6. Step 6: Final answer
    x = 34,713.27

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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.