Home / 71,792.04-99,071.78-39,960.04

Finding the Fourth Proportional to 71,792.04, 99,071.78 and 39,960.04

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Solution

The fourth proportional to 71,792.04, 99,071.78 and 39,960.04 is: 55,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,792.04 : 99,071.78 = 39,960.04 : x
  2. Step 2: Convert to fraction form
    71,792.04/99,071.78 = 39,960.04/x
  3. Step 3: Cross multiply
    71,792.04x = 99,071.78 × 39,960.04
  4. Step 4: Simplify right side
    71,792.04x = 3,958,912,291.67
  5. Step 5: Solve for x
    x = 3,958,912,291.67/71,792.04
  6. Step 6: Final answer
    x = 55,144.17

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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.