Home / 70,617.11-97,427.90-39,986.03

Finding the Fourth Proportional to 70,617.11, 97,427.90 and 39,986.03

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Solution

The fourth proportional to 70,617.11, 97,427.90 and 39,986.03 is: 55,167.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,617.11 : 97,427.90 = 39,986.03 : x
  2. Step 2: Convert to fraction form
    70,617.11/97,427.90 = 39,986.03/x
  3. Step 3: Cross multiply
    70,617.11x = 97,427.90 × 39,986.03
  4. Step 4: Simplify right side
    70,617.11x = 3,895,754,732.31
  5. Step 5: Solve for x
    x = 3,895,754,732.31/70,617.11
  6. Step 6: Final answer
    x = 55,167.29

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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.