Home / 83,447.28-115,167.96-47,629.08

Finding the Fourth Proportional to 83,447.28, 115,167.96 and 47,629.08

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Solution

The fourth proportional to 83,447.28, 115,167.96 and 47,629.08 is: 65,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,447.28 : 115,167.96 = 47,629.08 : x
  2. Step 2: Convert to fraction form
    83,447.28/115,167.96 = 47,629.08/x
  3. Step 3: Cross multiply
    83,447.28x = 115,167.96 × 47,629.08
  4. Step 4: Simplify right side
    83,447.28x = 5,485,343,980.28
  5. Step 5: Solve for x
    x = 5,485,343,980.28/83,447.28
  6. Step 6: Final answer
    x = 65,734.25

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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.