Home / 68,980.45-95,195.64-42,135.02

Finding the Fourth Proportional to 68,980.45, 95,195.64 and 42,135.02

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Solution

The fourth proportional to 68,980.45, 95,195.64 and 42,135.02 is: 58,147.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,980.45 : 95,195.64 = 42,135.02 : x
  2. Step 2: Convert to fraction form
    68,980.45/95,195.64 = 42,135.02/x
  3. Step 3: Cross multiply
    68,980.45x = 95,195.64 × 42,135.02
  4. Step 4: Simplify right side
    68,980.45x = 4,011,070,195.31
  5. Step 5: Solve for x
    x = 4,011,070,195.31/68,980.45
  6. Step 6: Final answer
    x = 58,147.93

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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.