Home / 57,680.78-86,520.66-18,237.92

Finding the Fourth Proportional to 57,680.78, 86,520.66 and 18,237.92

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Solution

The fourth proportional to 57,680.78, 86,520.66 and 18,237.92 is: 27,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,680.78 : 86,520.66 = 18,237.92 : x
  2. Step 2: Convert to fraction form
    57,680.78/86,520.66 = 18,237.92/x
  3. Step 3: Cross multiply
    57,680.78x = 86,520.66 × 18,237.92
  4. Step 4: Simplify right side
    57,680.78x = 1,577,956,875.43
  5. Step 5: Solve for x
    x = 1,577,956,875.43/57,680.78
  6. Step 6: Final answer
    x = 27,356.72

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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.