Home / 53,823.40-80,709.18-18,762.28

Finding the Fourth Proportional to 53,823.40, 80,709.18 and 18,762.28

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Solution

The fourth proportional to 53,823.40, 80,709.18 and 18,762.28 is: 28,134.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,823.40 : 80,709.18 = 18,762.28 : x
  2. Step 2: Convert to fraction form
    53,823.40/80,709.18 = 18,762.28/x
  3. Step 3: Cross multiply
    53,823.40x = 80,709.18 × 18,762.28
  4. Step 4: Simplify right side
    53,823.40x = 1,514,288,233.73
  5. Step 5: Solve for x
    x = 1,514,288,233.73/53,823.40
  6. Step 6: Final answer
    x = 28,134.38

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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.