Home / 67,272.78-92,836.41-38,994.84

Finding the Fourth Proportional to 67,272.78, 92,836.41 and 38,994.84

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Solution

The fourth proportional to 67,272.78, 92,836.41 and 38,994.84 is: 53,812.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,272.78 : 92,836.41 = 38,994.84 : x
  2. Step 2: Convert to fraction form
    67,272.78/92,836.41 = 38,994.84/x
  3. Step 3: Cross multiply
    67,272.78x = 92,836.41 × 38,994.84
  4. Step 4: Simplify right side
    67,272.78x = 3,620,140,954.12
  5. Step 5: Solve for x
    x = 3,620,140,954.12/67,272.78
  6. Step 6: Final answer
    x = 53,812.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.