Home / 68,191.50-102,290.91-21,448.02

Finding the Fourth Proportional to 68,191.50, 102,290.91 and 21,448.02

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Solution

The fourth proportional to 68,191.50, 102,290.91 and 21,448.02 is: 32,173.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,191.50 : 102,290.91 = 21,448.02 : x
  2. Step 2: Convert to fraction form
    68,191.50/102,290.91 = 21,448.02/x
  3. Step 3: Cross multiply
    68,191.50x = 102,290.91 × 21,448.02
  4. Step 4: Simplify right side
    68,191.50x = 2,193,937,483.50
  5. Step 5: Solve for x
    x = 2,193,937,483.50/68,191.50
  6. Step 6: Final answer
    x = 32,173.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.