Home / 67,983.40-101,979.60-18,062.80

Finding the Fourth Proportional to 67,983.40, 101,979.60 and 18,062.80

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Solution

The fourth proportional to 67,983.40, 101,979.60 and 18,062.80 is: 27,095.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,983.40 : 101,979.60 = 18,062.80 : x
  2. Step 2: Convert to fraction form
    67,983.40/101,979.60 = 18,062.80/x
  3. Step 3: Cross multiply
    67,983.40x = 101,979.60 × 18,062.80
  4. Step 4: Simplify right side
    67,983.40x = 1,842,037,118.88
  5. Step 5: Solve for x
    x = 1,842,037,118.88/67,983.40
  6. Step 6: Final answer
    x = 27,095.40

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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.