Home / 71,704.16-98,954.13-39,440.13

Finding the Fourth Proportional to 71,704.16, 98,954.13 and 39,440.13

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Solution

The fourth proportional to 71,704.16, 98,954.13 and 39,440.13 is: 54,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,704.16 : 98,954.13 = 39,440.13 : x
  2. Step 2: Convert to fraction form
    71,704.16/98,954.13 = 39,440.13/x
  3. Step 3: Cross multiply
    71,704.16x = 98,954.13 × 39,440.13
  4. Step 4: Simplify right side
    71,704.16x = 3,902,763,751.24
  5. Step 5: Solve for x
    x = 3,902,763,751.24/71,704.16
  6. Step 6: Final answer
    x = 54,428.70

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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.