Home / 52,310.88-78,498.63-20,715.62

Finding the Fourth Proportional to 52,310.88, 78,498.63 and 20,715.62

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Solution

The fourth proportional to 52,310.88, 78,498.63 and 20,715.62 is: 31,086.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,310.88 : 78,498.63 = 20,715.62 : x
  2. Step 2: Convert to fraction form
    52,310.88/78,498.63 = 20,715.62/x
  3. Step 3: Cross multiply
    52,310.88x = 78,498.63 × 20,715.62
  4. Step 4: Simplify right side
    52,310.88x = 1,626,147,789.60
  5. Step 5: Solve for x
    x = 1,626,147,789.60/52,310.88
  6. Step 6: Final answer
    x = 31,086.23

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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.