Home / 86,217.52-118,979.40-48,490.96

Finding the Fourth Proportional to 86,217.52, 118,979.40 and 48,490.96

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Solution

The fourth proportional to 86,217.52, 118,979.40 and 48,490.96 is: 66,917.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,217.52 : 118,979.40 = 48,490.96 : x
  2. Step 2: Convert to fraction form
    86,217.52/118,979.40 = 48,490.96/x
  3. Step 3: Cross multiply
    86,217.52x = 118,979.40 × 48,490.96
  4. Step 4: Simplify right side
    86,217.52x = 5,769,425,326.22
  5. Step 5: Solve for x
    x = 5,769,425,326.22/86,217.52
  6. Step 6: Final answer
    x = 66,917.09

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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.