Home / 85,109.64-117,449.22-47,383.08

Finding the Fourth Proportional to 85,109.64, 117,449.22 and 47,383.08

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Solution

The fourth proportional to 85,109.64, 117,449.22 and 47,383.08 is: 65,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,109.64 : 117,449.22 = 47,383.08 : x
  2. Step 2: Convert to fraction form
    85,109.64/117,449.22 = 47,383.08/x
  3. Step 3: Cross multiply
    85,109.64x = 117,449.22 × 47,383.08
  4. Step 4: Simplify right side
    85,109.64x = 5,565,105,787.20
  5. Step 5: Solve for x
    x = 5,565,105,787.20/85,109.64
  6. Step 6: Final answer
    x = 65,387.49

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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.