Home / 77,688.20-116,532.42-33,286.16

Finding the Fourth Proportional to 77,688.20, 116,532.42 and 33,286.16

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Solution

The fourth proportional to 77,688.20, 116,532.42 and 33,286.16 is: 49,929.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,688.20 : 116,532.42 = 33,286.16 : x
  2. Step 2: Convert to fraction form
    77,688.20/116,532.42 = 33,286.16/x
  3. Step 3: Cross multiply
    77,688.20x = 116,532.42 × 33,286.16
  4. Step 4: Simplify right side
    77,688.20x = 3,878,916,777.31
  5. Step 5: Solve for x
    x = 3,878,916,777.31/77,688.20
  6. Step 6: Final answer
    x = 49,929.29

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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.