Home / 70,839.60-97,755.14-39,002.55

Finding the Fourth Proportional to 70,839.60, 97,755.14 and 39,002.55

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Solution

The fourth proportional to 70,839.60, 97,755.14 and 39,002.55 is: 53,821.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,839.60 : 97,755.14 = 39,002.55 : x
  2. Step 2: Convert to fraction form
    70,839.60/97,755.14 = 39,002.55/x
  3. Step 3: Cross multiply
    70,839.60x = 97,755.14 × 39,002.55
  4. Step 4: Simplify right side
    70,839.60x = 3,812,699,735.61
  5. Step 5: Solve for x
    x = 3,812,699,735.61/70,839.60
  6. Step 6: Final answer
    x = 53,821.59

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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.