Home / 53,866-80,807.76-15,919.12

Finding the Fourth Proportional to 53,866, 80,807.76 and 15,919.12

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Solution

The fourth proportional to 53,866, 80,807.76 and 15,919.12 is: 23,881.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,866 : 80,807.76 = 15,919.12 : x
  2. Step 2: Convert to fraction form
    53,866/80,807.76 = 15,919.12/x
  3. Step 3: Cross multiply
    53,866x = 80,807.76 × 15,919.12
  4. Step 4: Simplify right side
    53,866x = 1,286,388,348.78
  5. Step 5: Solve for x
    x = 1,286,388,348.78/53,866
  6. Step 6: Final answer
    x = 23,881.27

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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.