Home / 57,756.14-86,636.56-18,312.38

Finding the Fourth Proportional to 57,756.14, 86,636.56 and 18,312.38

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Solution

The fourth proportional to 57,756.14, 86,636.56 and 18,312.38 is: 27,469.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,756.14 : 86,636.56 = 18,312.38 : x
  2. Step 2: Convert to fraction form
    57,756.14/86,636.56 = 18,312.38/x
  3. Step 3: Cross multiply
    57,756.14x = 86,636.56 × 18,312.38
  4. Step 4: Simplify right side
    57,756.14x = 1,586,521,608.61
  5. Step 5: Solve for x
    x = 1,586,521,608.61/57,756.14
  6. Step 6: Final answer
    x = 27,469.32

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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.