Home / 105,591.78-145,717.92-57,847.14

Finding the Fourth Proportional to 105,591.78, 145,717.92 and 57,847.14

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Solution

The fourth proportional to 105,591.78, 145,717.92 and 57,847.14 is: 79,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,591.78 : 145,717.92 = 57,847.14 : x
  2. Step 2: Convert to fraction form
    105,591.78/145,717.92 = 57,847.14/x
  3. Step 3: Cross multiply
    105,591.78x = 145,717.92 × 57,847.14
  4. Step 4: Simplify right side
    105,591.78x = 8,429,364,918.75
  5. Step 5: Solve for x
    x = 8,429,364,918.75/105,591.78
  6. Step 6: Final answer
    x = 79,829.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.