Home / 57,367.92-86,000.04-20,423.28

Finding the Fourth Proportional to 57,367.92, 86,000.04 and 20,423.28

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Solution

The fourth proportional to 57,367.92, 86,000.04 and 20,423.28 is: 30,616.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,367.92 : 86,000.04 = 20,423.28 : x
  2. Step 2: Convert to fraction form
    57,367.92/86,000.04 = 20,423.28/x
  3. Step 3: Cross multiply
    57,367.92x = 86,000.04 × 20,423.28
  4. Step 4: Simplify right side
    57,367.92x = 1,756,402,896.93
  5. Step 5: Solve for x
    x = 1,756,402,896.93/57,367.92
  6. Step 6: Final answer
    x = 30,616.46

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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.