Home / 85,065.70-117,370.62-71,505.30

Finding the Fourth Proportional to 85,065.70, 117,370.62 and 71,505.30

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Solution

The fourth proportional to 85,065.70, 117,370.62 and 71,505.30 is: 98,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,065.70 : 117,370.62 = 71,505.30 : x
  2. Step 2: Convert to fraction form
    85,065.70/117,370.62 = 71,505.30/x
  3. Step 3: Cross multiply
    85,065.70x = 117,370.62 × 71,505.30
  4. Step 4: Simplify right side
    85,065.70x = 8,392,621,394.29
  5. Step 5: Solve for x
    x = 8,392,621,394.29/85,065.70
  6. Step 6: Final answer
    x = 98,660.46

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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.