Home / 45,820.89-68,731.29-12,541.23

Finding the Fourth Proportional to 45,820.89, 68,731.29 and 12,541.23

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Solution

The fourth proportional to 45,820.89, 68,731.29 and 12,541.23 is: 18,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,820.89 : 68,731.29 = 12,541.23 : x
  2. Step 2: Convert to fraction form
    45,820.89/68,731.29 = 12,541.23/x
  3. Step 3: Cross multiply
    45,820.89x = 68,731.29 × 12,541.23
  4. Step 4: Simplify right side
    45,820.89x = 861,974,916.09
  5. Step 5: Solve for x
    x = 861,974,916.09/45,820.89
  6. Step 6: Final answer
    x = 18,811.83

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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.