Home / 57,990.78-87,019.62-31,336.83

Finding the Fourth Proportional to 57,990.78, 87,019.62 and 31,336.83

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Solution

The fourth proportional to 57,990.78, 87,019.62 and 31,336.83 is: 47,023.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,990.78 : 87,019.62 = 31,336.83 : x
  2. Step 2: Convert to fraction form
    57,990.78/87,019.62 = 31,336.83/x
  3. Step 3: Cross multiply
    57,990.78x = 87,019.62 × 31,336.83
  4. Step 4: Simplify right side
    57,990.78x = 2,726,919,038.60
  5. Step 5: Solve for x
    x = 2,726,919,038.60/57,990.78
  6. Step 6: Final answer
    x = 47,023.32

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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.