Home / 85,691.16-118,242.72-47,965.41

Finding the Fourth Proportional to 85,691.16, 118,242.72 and 47,965.41

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Solution

The fourth proportional to 85,691.16, 118,242.72 and 47,965.41 is: 66,186.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,691.16 : 118,242.72 = 47,965.41 : x
  2. Step 2: Convert to fraction form
    85,691.16/118,242.72 = 47,965.41/x
  3. Step 3: Cross multiply
    85,691.16x = 118,242.72 × 47,965.41
  4. Step 4: Simplify right side
    85,691.16x = 5,671,560,544.32
  5. Step 5: Solve for x
    x = 5,671,560,544.32/85,691.16
  6. Step 6: Final answer
    x = 66,186.06

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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.