Home / 82,284.08-113,445.96-67,161.20

Finding the Fourth Proportional to 82,284.08, 113,445.96 and 67,161.20

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Solution

The fourth proportional to 82,284.08, 113,445.96 and 67,161.20 is: 92,595.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,284.08 : 113,445.96 = 67,161.20 : x
  2. Step 2: Convert to fraction form
    82,284.08/113,445.96 = 67,161.20/x
  3. Step 3: Cross multiply
    82,284.08x = 113,445.96 × 67,161.20
  4. Step 4: Simplify right side
    82,284.08x = 7,619,166,808.75
  5. Step 5: Solve for x
    x = 7,619,166,808.75/82,284.08
  6. Step 6: Final answer
    x = 92,595.88

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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.