Home / 68,972.16-95,191.86-42,130.08

Finding the Fourth Proportional to 68,972.16, 95,191.86 and 42,130.08

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Solution

The fourth proportional to 68,972.16, 95,191.86 and 42,130.08 is: 58,145.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,972.16 : 95,191.86 = 42,130.08 : x
  2. Step 2: Convert to fraction form
    68,972.16/95,191.86 = 42,130.08/x
  3. Step 3: Cross multiply
    68,972.16x = 95,191.86 × 42,130.08
  4. Step 4: Simplify right side
    68,972.16x = 4,010,440,677.15
  5. Step 5: Solve for x
    x = 4,010,440,677.15/68,972.16
  6. Step 6: Final answer
    x = 58,145.79

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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.