Home / 68,987.67-95,186.12-42,120.39

Finding the Fourth Proportional to 68,987.67, 95,186.12 and 42,120.39

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Solution

The fourth proportional to 68,987.67, 95,186.12 and 42,120.39 is: 58,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,987.67 : 95,186.12 = 42,120.39 : x
  2. Step 2: Convert to fraction form
    68,987.67/95,186.12 = 42,120.39/x
  3. Step 3: Cross multiply
    68,987.67x = 95,186.12 × 42,120.39
  4. Step 4: Simplify right side
    68,987.67x = 4,009,276,286.38
  5. Step 5: Solve for x
    x = 4,009,276,286.38/68,987.67
  6. Step 6: Final answer
    x = 58,115.84

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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.