Home / 70,986.24-97,961.40-39,155.13

Finding the Fourth Proportional to 70,986.24, 97,961.40 and 39,155.13

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Solution

The fourth proportional to 70,986.24, 97,961.40 and 39,155.13 is: 54,034.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,986.24 : 97,961.40 = 39,155.13 : x
  2. Step 2: Convert to fraction form
    70,986.24/97,961.40 = 39,155.13/x
  3. Step 3: Cross multiply
    70,986.24x = 97,961.40 × 39,155.13
  4. Step 4: Simplify right side
    70,986.24x = 3,835,691,351.98
  5. Step 5: Solve for x
    x = 3,835,691,351.98/70,986.24
  6. Step 6: Final answer
    x = 54,034.29

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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.