Home / 67,981.40-101,976.60-18,060.80

Finding the Fourth Proportional to 67,981.40, 101,976.60 and 18,060.80

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Solution

The fourth proportional to 67,981.40, 101,976.60 and 18,060.80 is: 27,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,981.40 : 101,976.60 = 18,060.80 : x
  2. Step 2: Convert to fraction form
    67,981.40/101,976.60 = 18,060.80/x
  3. Step 3: Cross multiply
    67,981.40x = 101,976.60 × 18,060.80
  4. Step 4: Simplify right side
    67,981.40x = 1,841,778,977.28
  5. Step 5: Solve for x
    x = 1,841,778,977.28/67,981.40
  6. Step 6: Final answer
    x = 27,092.40

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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.