Home / 71,172.11-98,217.54-39,341.00

Finding the Fourth Proportional to 71,172.11, 98,217.54 and 39,341.00

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Solution

The fourth proportional to 71,172.11, 98,217.54 and 39,341.00 is: 54,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,172.11 : 98,217.54 = 39,341.00 : x
  2. Step 2: Convert to fraction form
    71,172.11/98,217.54 = 39,341.00/x
  3. Step 3: Cross multiply
    71,172.11x = 98,217.54 × 39,341.00
  4. Step 4: Simplify right side
    71,172.11x = 3,863,976,486.68
  5. Step 5: Solve for x
    x = 3,863,976,486.68/71,172.11
  6. Step 6: Final answer
    x = 54,290.60

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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.