Home / 67,982.18-101,987.86-28,516.54

Finding the Fourth Proportional to 67,982.18, 101,987.86 and 28,516.54

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Solution

The fourth proportional to 67,982.18, 101,987.86 and 28,516.54 is: 42,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,982.18 : 101,987.86 = 28,516.54 : x
  2. Step 2: Convert to fraction form
    67,982.18/101,987.86 = 28,516.54/x
  3. Step 3: Cross multiply
    67,982.18x = 101,987.86 × 28,516.54
  4. Step 4: Simplify right side
    67,982.18x = 2,908,340,889.20
  5. Step 5: Solve for x
    x = 2,908,340,889.20/67,982.18
  6. Step 6: Final answer
    x = 42,780.93

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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.