Home / 85,882.12-118,517.63-47,642.43

Finding the Fourth Proportional to 85,882.12, 118,517.63 and 47,642.43

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Solution

The fourth proportional to 85,882.12, 118,517.63 and 47,642.43 is: 65,746.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,882.12 : 118,517.63 = 47,642.43 : x
  2. Step 2: Convert to fraction form
    85,882.12/118,517.63 = 47,642.43/x
  3. Step 3: Cross multiply
    85,882.12x = 118,517.63 × 47,642.43
  4. Step 4: Simplify right side
    85,882.12x = 5,646,467,698.60
  5. Step 5: Solve for x
    x = 5,646,467,698.60/85,882.12
  6. Step 6: Final answer
    x = 65,746.72

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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.