Home / 70,991.25-97,960.36-39,160.15

Finding the Fourth Proportional to 70,991.25, 97,960.36 and 39,160.15

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Solution

The fourth proportional to 70,991.25, 97,960.36 and 39,160.15 is: 54,036.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,991.25 : 97,960.36 = 39,160.15 : x
  2. Step 2: Convert to fraction form
    70,991.25/97,960.36 = 39,160.15/x
  3. Step 3: Cross multiply
    70,991.25x = 97,960.36 × 39,160.15
  4. Step 4: Simplify right side
    70,991.25x = 3,836,142,391.65
  5. Step 5: Solve for x
    x = 3,836,142,391.65/70,991.25
  6. Step 6: Final answer
    x = 54,036.83

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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.