Home / 57,889.19-86,844.11-20,470.98

Finding the Fourth Proportional to 57,889.19, 86,844.11 and 20,470.98

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Solution

The fourth proportional to 57,889.19, 86,844.11 and 20,470.98 is: 30,710.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,889.19 : 86,844.11 = 20,470.98 : x
  2. Step 2: Convert to fraction form
    57,889.19/86,844.11 = 20,470.98/x
  3. Step 3: Cross multiply
    57,889.19x = 86,844.11 × 20,470.98
  4. Step 4: Simplify right side
    57,889.19x = 1,777,783,936.57
  5. Step 5: Solve for x
    x = 1,777,783,936.57/57,889.19
  6. Step 6: Final answer
    x = 30,710.12

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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.