Home / 71,641.98-98,868.33-39,812.22

Finding the Fourth Proportional to 71,641.98, 98,868.33 and 39,812.22

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Solution

The fourth proportional to 71,641.98, 98,868.33 and 39,812.22 is: 54,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,641.98 : 98,868.33 = 39,812.22 : x
  2. Step 2: Convert to fraction form
    71,641.98/98,868.33 = 39,812.22/x
  3. Step 3: Cross multiply
    71,641.98x = 98,868.33 × 39,812.22
  4. Step 4: Simplify right side
    71,641.98x = 3,936,167,704.99
  5. Step 5: Solve for x
    x = 3,936,167,704.99/71,641.98
  6. Step 6: Final answer
    x = 54,942.20

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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.