Home / 82,581.72-113,980.88-54,290.04

Finding the Fourth Proportional to 82,581.72, 113,980.88 and 54,290.04

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Solution

The fourth proportional to 82,581.72, 113,980.88 and 54,290.04 is: 74,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,581.72 : 113,980.88 = 54,290.04 : x
  2. Step 2: Convert to fraction form
    82,581.72/113,980.88 = 54,290.04/x
  3. Step 3: Cross multiply
    82,581.72x = 113,980.88 × 54,290.04
  4. Step 4: Simplify right side
    82,581.72x = 6,188,026,534.44
  5. Step 5: Solve for x
    x = 6,188,026,534.44/82,581.72
  6. Step 6: Final answer
    x = 74,932.16

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1.5x scale

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.