Home / 57,976.16-86,921.64-18,510.56

Finding the Fourth Proportional to 57,976.16, 86,921.64 and 18,510.56

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Solution

The fourth proportional to 57,976.16, 86,921.64 and 18,510.56 is: 27,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,976.16 : 86,921.64 = 18,510.56 : x
  2. Step 2: Convert to fraction form
    57,976.16/86,921.64 = 18,510.56/x
  3. Step 3: Cross multiply
    57,976.16x = 86,921.64 × 18,510.56
  4. Step 4: Simplify right side
    57,976.16x = 1,608,968,232.52
  5. Step 5: Solve for x
    x = 1,608,968,232.52/57,976.16
  6. Step 6: Final answer
    x = 27,752.24

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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.