Home / 57,970.35-86,931.23-18,516.87

Finding the Fourth Proportional to 57,970.35, 86,931.23 and 18,516.87

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Solution

The fourth proportional to 57,970.35, 86,931.23 and 18,516.87 is: 27,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,970.35 : 86,931.23 = 18,516.87 : x
  2. Step 2: Convert to fraction form
    57,970.35/86,931.23 = 18,516.87/x
  3. Step 3: Cross multiply
    57,970.35x = 86,931.23 × 18,516.87
  4. Step 4: Simplify right side
    57,970.35x = 1,609,694,192.27
  5. Step 5: Solve for x
    x = 1,609,694,192.27/57,970.35
  6. Step 6: Final answer
    x = 27,767.54

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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.