Home / 66,209.70-99,358.28-31,152.09

Finding the Fourth Proportional to 66,209.70, 99,358.28 and 31,152.09

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Solution

The fourth proportional to 66,209.70, 99,358.28 and 31,152.09 is: 46,748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,209.70 : 99,358.28 = 31,152.09 : x
  2. Step 2: Convert to fraction form
    66,209.70/99,358.28 = 31,152.09/x
  3. Step 3: Cross multiply
    66,209.70x = 99,358.28 × 31,152.09
  4. Step 4: Simplify right side
    66,209.70x = 3,095,218,414.46
  5. Step 5: Solve for x
    x = 3,095,218,414.46/66,209.70
  6. Step 6: Final answer
    x = 46,748.71

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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.