Home / 68,720.95-103,549.60-56,514.43

Finding the Fourth Proportional to 68,720.95, 103,549.60 and 56,514.43

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Solution

The fourth proportional to 68,720.95, 103,549.60 and 56,514.43 is: 85,156.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,720.95 : 103,549.60 = 56,514.43 : x
  2. Step 2: Convert to fraction form
    68,720.95/103,549.60 = 56,514.43/x
  3. Step 3: Cross multiply
    68,720.95x = 103,549.60 × 56,514.43
  4. Step 4: Simplify right side
    68,720.95x = 5,852,046,620.73
  5. Step 5: Solve for x
    x = 5,852,046,620.73/68,720.95
  6. Step 6: Final answer
    x = 85,156.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.