Home / 82,564.18-113,985.80-54,351.88

Finding the Fourth Proportional to 82,564.18, 113,985.80 and 54,351.88

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Solution

The fourth proportional to 82,564.18, 113,985.80 and 54,351.88 is: 75,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,564.18 : 113,985.80 = 54,351.88 : x
  2. Step 2: Convert to fraction form
    82,564.18/113,985.80 = 54,351.88/x
  3. Step 3: Cross multiply
    82,564.18x = 113,985.80 × 54,351.88
  4. Step 4: Simplify right side
    82,564.18x = 6,195,342,523.30
  5. Step 5: Solve for x
    x = 6,195,342,523.30/82,564.18
  6. Step 6: Final answer
    x = 75,036.69

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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.