Home / 70,617.55-97,428.51-39,986.46

Finding the Fourth Proportional to 70,617.55, 97,428.51 and 39,986.46

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Solution

The fourth proportional to 70,617.55, 97,428.51 and 39,986.46 is: 55,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,617.55 : 97,428.51 = 39,986.46 : x
  2. Step 2: Convert to fraction form
    70,617.55/97,428.51 = 39,986.46/x
  3. Step 3: Cross multiply
    70,617.55x = 97,428.51 × 39,986.46
  4. Step 4: Simplify right side
    70,617.55x = 3,895,821,217.97
  5. Step 5: Solve for x
    x = 3,895,821,217.97/70,617.55
  6. Step 6: Final answer
    x = 55,167.89

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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.