Home / 90,913.37-136,377.95-27,747.72

Finding the Fourth Proportional to 90,913.37, 136,377.95 and 27,747.72

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Solution

The fourth proportional to 90,913.37, 136,377.95 and 27,747.72 is: 41,623.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,913.37 : 136,377.95 = 27,747.72 : x
  2. Step 2: Convert to fraction form
    90,913.37/136,377.95 = 27,747.72/x
  3. Step 3: Cross multiply
    90,913.37x = 136,377.95 × 27,747.72
  4. Step 4: Simplify right side
    90,913.37x = 3,784,176,350.15
  5. Step 5: Solve for x
    x = 3,784,176,350.15/90,913.37
  6. Step 6: Final answer
    x = 41,623.98

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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.