Home / 83,878.36-115,691.58-48,055.30

Finding the Fourth Proportional to 83,878.36, 115,691.58 and 48,055.30

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Solution

The fourth proportional to 83,878.36, 115,691.58 and 48,055.30 is: 66,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,878.36 : 115,691.58 = 48,055.30 : x
  2. Step 2: Convert to fraction form
    83,878.36/115,691.58 = 48,055.30/x
  3. Step 3: Cross multiply
    83,878.36x = 115,691.58 × 48,055.30
  4. Step 4: Simplify right side
    83,878.36x = 5,559,593,584.37
  5. Step 5: Solve for x
    x = 5,559,593,584.37/83,878.36
  6. Step 6: Final answer
    x = 66,281.62

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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.