Home / 67,973.63-101,982.11-28,520.15

Finding the Fourth Proportional to 67,973.63, 101,982.11 and 28,520.15

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Solution

The fourth proportional to 67,973.63, 101,982.11 and 28,520.15 is: 42,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,973.63 : 101,982.11 = 28,520.15 : x
  2. Step 2: Convert to fraction form
    67,973.63/101,982.11 = 28,520.15/x
  3. Step 3: Cross multiply
    67,973.63x = 101,982.11 × 28,520.15
  4. Step 4: Simplify right side
    67,973.63x = 2,908,544,422.01
  5. Step 5: Solve for x
    x = 2,908,544,422.01/67,973.63
  6. Step 6: Final answer
    x = 42,789.31

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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.