Home / 67,069.04-100,605-20,321.84

Finding the Fourth Proportional to 67,069.04, 100,605 and 20,321.84

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Solution

The fourth proportional to 67,069.04, 100,605 and 20,321.84 is: 30,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,069.04 : 100,605 = 20,321.84 : x
  2. Step 2: Convert to fraction form
    67,069.04/100,605 = 20,321.84/x
  3. Step 3: Cross multiply
    67,069.04x = 100,605 × 20,321.84
  4. Step 4: Simplify right side
    67,069.04x = 2,044,478,713.20
  5. Step 5: Solve for x
    x = 2,044,478,713.20/67,069.04
  6. Step 6: Final answer
    x = 30,483.20

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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.