Home / 57,717.37-86,543.65-20,267.02

Finding the Fourth Proportional to 57,717.37, 86,543.65 and 20,267.02

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Solution

The fourth proportional to 57,717.37, 86,543.65 and 20,267.02 is: 30,389.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,717.37 : 86,543.65 = 20,267.02 : x
  2. Step 2: Convert to fraction form
    57,717.37/86,543.65 = 20,267.02/x
  3. Step 3: Cross multiply
    57,717.37x = 86,543.65 × 20,267.02
  4. Step 4: Simplify right side
    57,717.37x = 1,753,981,885.42
  5. Step 5: Solve for x
    x = 1,753,981,885.42/57,717.37
  6. Step 6: Final answer
    x = 30,389.15

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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.