Home / 68,981.30-95,195.04-42,120.08

Finding the Fourth Proportional to 68,981.30, 95,195.04 and 42,120.08

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Solution

The fourth proportional to 68,981.30, 95,195.04 and 42,120.08 is: 58,126.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,981.30 : 95,195.04 = 42,120.08 : x
  2. Step 2: Convert to fraction form
    68,981.30/95,195.04 = 42,120.08/x
  3. Step 3: Cross multiply
    68,981.30x = 95,195.04 × 42,120.08
  4. Step 4: Simplify right side
    68,981.30x = 4,009,622,938.39
  5. Step 5: Solve for x
    x = 4,009,622,938.39/68,981.30
  6. Step 6: Final answer
    x = 58,126.23

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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.