Home / 57,423.75-86,128.79-15,306.99

Finding the Fourth Proportional to 57,423.75, 86,128.79 and 15,306.99

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Solution

The fourth proportional to 57,423.75, 86,128.79 and 15,306.99 is: 22,958.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,423.75 : 86,128.79 = 15,306.99 : x
  2. Step 2: Convert to fraction form
    57,423.75/86,128.79 = 15,306.99/x
  3. Step 3: Cross multiply
    57,423.75x = 86,128.79 × 15,306.99
  4. Step 4: Simplify right side
    57,423.75x = 1,318,372,127.72
  5. Step 5: Solve for x
    x = 1,318,372,127.72/57,423.75
  6. Step 6: Final answer
    x = 22,958.66

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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.