Home / 85,397.21-117,832.62-59,981.23

Finding the Fourth Proportional to 85,397.21, 117,832.62 and 59,981.23

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Solution

The fourth proportional to 85,397.21, 117,832.62 and 59,981.23 is: 82,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,397.21 : 117,832.62 = 59,981.23 : x
  2. Step 2: Convert to fraction form
    85,397.21/117,832.62 = 59,981.23/x
  3. Step 3: Cross multiply
    85,397.21x = 117,832.62 × 59,981.23
  4. Step 4: Simplify right side
    85,397.21x = 7,067,745,481.72
  5. Step 5: Solve for x
    x = 7,067,745,481.72/85,397.21
  6. Step 6: Final answer
    x = 82,763.19

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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.