Home / 85,218.67-117,578.15-55,005.27

Finding the Fourth Proportional to 85,218.67, 117,578.15 and 55,005.27

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Solution

The fourth proportional to 85,218.67, 117,578.15 and 55,005.27 is: 75,892.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,218.67 : 117,578.15 = 55,005.27 : x
  2. Step 2: Convert to fraction form
    85,218.67/117,578.15 = 55,005.27/x
  3. Step 3: Cross multiply
    85,218.67x = 117,578.15 × 55,005.27
  4. Step 4: Simplify right side
    85,218.67x = 6,467,417,023.93
  5. Step 5: Solve for x
    x = 6,467,417,023.93/85,218.67
  6. Step 6: Final answer
    x = 75,892.02

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1.5x scale

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.