Home / 67,629.40-101,389.14-28,215.88

Finding the Fourth Proportional to 67,629.40, 101,389.14 and 28,215.88

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Solution

The fourth proportional to 67,629.40, 101,389.14 and 28,215.88 is: 42,300.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,629.40 : 101,389.14 = 28,215.88 : x
  2. Step 2: Convert to fraction form
    67,629.40/101,389.14 = 28,215.88/x
  3. Step 3: Cross multiply
    67,629.40x = 101,389.14 × 28,215.88
  4. Step 4: Simplify right side
    67,629.40x = 2,860,783,807.54
  5. Step 5: Solve for x
    x = 2,860,783,807.54/67,629.40
  6. Step 6: Final answer
    x = 42,300.89

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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.