Home / 57,711.36-86,582.40-18,269.28

Finding the Fourth Proportional to 57,711.36, 86,582.40 and 18,269.28

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Solution

The fourth proportional to 57,711.36, 86,582.40 and 18,269.28 is: 27,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,711.36 : 86,582.40 = 18,269.28 : x
  2. Step 2: Convert to fraction form
    57,711.36/86,582.40 = 18,269.28/x
  3. Step 3: Cross multiply
    57,711.36x = 86,582.40 × 18,269.28
  4. Step 4: Simplify right side
    57,711.36x = 1,581,798,108.67
  5. Step 5: Solve for x
    x = 1,581,798,108.67/57,711.36
  6. Step 6: Final answer
    x = 27,408.78

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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.