Home / 85,387.10-117,825.26-49,570.12

Finding the Fourth Proportional to 85,387.10, 117,825.26 and 49,570.12

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Solution

The fourth proportional to 85,387.10, 117,825.26 and 49,570.12 is: 68,401.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,387.10 : 117,825.26 = 49,570.12 : x
  2. Step 2: Convert to fraction form
    85,387.10/117,825.26 = 49,570.12/x
  3. Step 3: Cross multiply
    85,387.10x = 117,825.26 × 49,570.12
  4. Step 4: Simplify right side
    85,387.10x = 5,840,611,734.82
  5. Step 5: Solve for x
    x = 5,840,611,734.82/85,387.10
  6. Step 6: Final answer
    x = 68,401.57

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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.