Home / 66,849.18-92,249.16-39,975.84

Finding the Fourth Proportional to 66,849.18, 92,249.16 and 39,975.84

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Solution

The fourth proportional to 66,849.18, 92,249.16 and 39,975.84 is: 55,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,849.18 : 92,249.16 = 39,975.84 : x
  2. Step 2: Convert to fraction form
    66,849.18/92,249.16 = 39,975.84/x
  3. Step 3: Cross multiply
    66,849.18x = 92,249.16 × 39,975.84
  4. Step 4: Simplify right side
    66,849.18x = 3,687,737,660.29
  5. Step 5: Solve for x
    x = 3,687,737,660.29/66,849.18
  6. Step 6: Final answer
    x = 55,165.04

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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.