Home / 83,458.08-115,181.64-47,653.20

Finding the Fourth Proportional to 83,458.08, 115,181.64 and 47,653.20

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Solution

The fourth proportional to 83,458.08, 115,181.64 and 47,653.20 is: 65,766.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,458.08 : 115,181.64 = 47,653.20 : x
  2. Step 2: Convert to fraction form
    83,458.08/115,181.64 = 47,653.20/x
  3. Step 3: Cross multiply
    83,458.08x = 115,181.64 × 47,653.20
  4. Step 4: Simplify right side
    83,458.08x = 5,488,773,727.25
  5. Step 5: Solve for x
    x = 5,488,773,727.25/83,458.08
  6. Step 6: Final answer
    x = 65,766.83

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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.