Home / 85,360.11-117,776.29-54,719.21

Finding the Fourth Proportional to 85,360.11, 117,776.29 and 54,719.21

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Solution

The fourth proportional to 85,360.11, 117,776.29 and 54,719.21 is: 75,499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,360.11 : 117,776.29 = 54,719.21 : x
  2. Step 2: Convert to fraction form
    85,360.11/117,776.29 = 54,719.21/x
  3. Step 3: Cross multiply
    85,360.11x = 117,776.29 × 54,719.21
  4. Step 4: Simplify right side
    85,360.11x = 6,444,625,651.87
  5. Step 5: Solve for x
    x = 6,444,625,651.87/85,360.11
  6. Step 6: Final answer
    x = 75,499.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.