Home / 45,370.31-68,055.46-18,715.91

Finding the Fourth Proportional to 45,370.31, 68,055.46 and 18,715.91

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Solution

The fourth proportional to 45,370.31, 68,055.46 and 18,715.91 is: 28,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,370.31 : 68,055.46 = 18,715.91 : x
  2. Step 2: Convert to fraction form
    45,370.31/68,055.46 = 18,715.91/x
  3. Step 3: Cross multiply
    45,370.31x = 68,055.46 × 18,715.91
  4. Step 4: Simplify right side
    45,370.31x = 1,273,719,477.30
  5. Step 5: Solve for x
    x = 1,273,719,477.30/45,370.31
  6. Step 6: Final answer
    x = 28,073.86

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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.