Home / 45,718.88-68,518.17-19,391.04

Finding the Fourth Proportional to 45,718.88, 68,518.17 and 19,391.04

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Solution

The fourth proportional to 45,718.88, 68,518.17 and 19,391.04 is: 29,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,718.88 : 68,518.17 = 19,391.04 : x
  2. Step 2: Convert to fraction form
    45,718.88/68,518.17 = 19,391.04/x
  3. Step 3: Cross multiply
    45,718.88x = 68,518.17 × 19,391.04
  4. Step 4: Simplify right side
    45,718.88x = 1,328,638,575.20
  5. Step 5: Solve for x
    x = 1,328,638,575.20/45,718.88
  6. Step 6: Final answer
    x = 29,061.05

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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.