Home / 56,719.80-85,091.82-17,280.06

Finding the Fourth Proportional to 56,719.80, 85,091.82 and 17,280.06

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Solution

The fourth proportional to 56,719.80, 85,091.82 and 17,280.06 is: 25,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,719.80 : 85,091.82 = 17,280.06 : x
  2. Step 2: Convert to fraction form
    56,719.80/85,091.82 = 17,280.06/x
  3. Step 3: Cross multiply
    56,719.80x = 85,091.82 × 17,280.06
  4. Step 4: Simplify right side
    56,719.80x = 1,470,391,755.11
  5. Step 5: Solve for x
    x = 1,470,391,755.11/56,719.80
  6. Step 6: Final answer
    x = 25,923.78

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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.