Home / 56,979.99-85,463.51-15,423.75

Finding the Fourth Proportional to 56,979.99, 85,463.51 and 15,423.75

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Solution

The fourth proportional to 56,979.99, 85,463.51 and 15,423.75 is: 23,133.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,979.99 : 85,463.51 = 15,423.75 : x
  2. Step 2: Convert to fraction form
    56,979.99/85,463.51 = 15,423.75/x
  3. Step 3: Cross multiply
    56,979.99x = 85,463.51 × 15,423.75
  4. Step 4: Simplify right side
    56,979.99x = 1,318,167,735.24
  5. Step 5: Solve for x
    x = 1,318,167,735.24/56,979.99
  6. Step 6: Final answer
    x = 23,133.87

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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.