Home / 70,517.32-97,297.21-39,891.12

Finding the Fourth Proportional to 70,517.32, 97,297.21 and 39,891.12

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Solution

The fourth proportional to 70,517.32, 97,297.21 and 39,891.12 is: 55,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,517.32 : 97,297.21 = 39,891.12 : x
  2. Step 2: Convert to fraction form
    70,517.32/97,297.21 = 39,891.12/x
  3. Step 3: Cross multiply
    70,517.32x = 97,297.21 × 39,891.12
  4. Step 4: Simplify right side
    70,517.32x = 3,881,294,679.78
  5. Step 5: Solve for x
    x = 3,881,294,679.78/70,517.32
  6. Step 6: Final answer
    x = 55,040.30

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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.