Home / 82,107.08-113,264.74-71,327.75

Finding the Fourth Proportional to 82,107.08, 113,264.74 and 71,327.75

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Solution

The fourth proportional to 82,107.08, 113,264.74 and 71,327.75 is: 98,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,107.08 : 113,264.74 = 71,327.75 : x
  2. Step 2: Convert to fraction form
    82,107.08/113,264.74 = 71,327.75/x
  3. Step 3: Cross multiply
    82,107.08x = 113,264.74 × 71,327.75
  4. Step 4: Simplify right side
    82,107.08x = 8,078,919,058.54
  5. Step 5: Solve for x
    x = 8,078,919,058.54/82,107.08
  6. Step 6: Final answer
    x = 98,394.91

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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.