Home / 85,143.07-117,479.46-49,330.90

Finding the Fourth Proportional to 85,143.07, 117,479.46 and 49,330.90

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Solution

The fourth proportional to 85,143.07, 117,479.46 and 49,330.90 is: 68,066.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,143.07 : 117,479.46 = 49,330.90 : x
  2. Step 2: Convert to fraction form
    85,143.07/117,479.46 = 49,330.90/x
  3. Step 3: Cross multiply
    85,143.07x = 117,479.46 × 49,330.90
  4. Step 4: Simplify right side
    85,143.07x = 5,795,367,493.31
  5. Step 5: Solve for x
    x = 5,795,367,493.31/85,143.07
  6. Step 6: Final answer
    x = 68,066.23

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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.