Home / 45,821.18-68,731.72-12,541.52

Finding the Fourth Proportional to 45,821.18, 68,731.72 and 12,541.52

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Solution

The fourth proportional to 45,821.18, 68,731.72 and 12,541.52 is: 18,812.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,821.18 : 68,731.72 = 12,541.52 : x
  2. Step 2: Convert to fraction form
    45,821.18/68,731.72 = 12,541.52/x
  3. Step 3: Cross multiply
    45,821.18x = 68,731.72 × 12,541.52
  4. Step 4: Simplify right side
    45,821.18x = 862,000,452.04
  5. Step 5: Solve for x
    x = 862,000,452.04/45,821.18
  6. Step 6: Final answer
    x = 18,812.27

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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.