Home / 91,400.06-137,049.84-28,202.94

Finding the Fourth Proportional to 91,400.06, 137,049.84 and 28,202.94

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Solution

The fourth proportional to 91,400.06, 137,049.84 and 28,202.94 is: 42,288.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,400.06 : 137,049.84 = 28,202.94 : x
  2. Step 2: Convert to fraction form
    91,400.06/137,049.84 = 28,202.94/x
  3. Step 3: Cross multiply
    91,400.06x = 137,049.84 × 28,202.94
  4. Step 4: Simplify right side
    91,400.06x = 3,865,208,414.53
  5. Step 5: Solve for x
    x = 3,865,208,414.53/91,400.06
  6. Step 6: Final answer
    x = 42,288.91

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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.