Home / 67,185.04-100,777.98-20,437.84

Finding the Fourth Proportional to 67,185.04, 100,777.98 and 20,437.84

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Solution

The fourth proportional to 67,185.04, 100,777.98 and 20,437.84 is: 30,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,185.04 : 100,777.98 = 20,437.84 : x
  2. Step 2: Convert to fraction form
    67,185.04/100,777.98 = 20,437.84/x
  3. Step 3: Cross multiply
    67,185.04x = 100,777.98 × 20,437.84
  4. Step 4: Simplify right side
    67,185.04x = 2,059,684,230.76
  5. Step 5: Solve for x
    x = 2,059,684,230.76/67,185.04
  6. Step 6: Final answer
    x = 30,656.89

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1.5x scale

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.