Home / 68,212.21-102,332.18-28,769.46

Finding the Fourth Proportional to 68,212.21, 102,332.18 and 28,769.46

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Solution

The fourth proportional to 68,212.21, 102,332.18 and 28,769.46 is: 43,160.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,212.21 : 102,332.18 = 28,769.46 : x
  2. Step 2: Convert to fraction form
    68,212.21/102,332.18 = 28,769.46/x
  3. Step 3: Cross multiply
    68,212.21x = 102,332.18 × 28,769.46
  4. Step 4: Simplify right side
    68,212.21x = 2,944,041,631.15
  5. Step 5: Solve for x
    x = 2,944,041,631.15/68,212.21
  6. Step 6: Final answer
    x = 43,160.04

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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.