Home / 53,306.19-79,949.61-13,860.86

Finding the Fourth Proportional to 53,306.19, 79,949.61 and 13,860.86

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Solution

The fourth proportional to 53,306.19, 79,949.61 and 13,860.86 is: 20,788.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,306.19 : 79,949.61 = 13,860.86 : x
  2. Step 2: Convert to fraction form
    53,306.19/79,949.61 = 13,860.86/x
  3. Step 3: Cross multiply
    53,306.19x = 79,949.61 × 13,860.86
  4. Step 4: Simplify right side
    53,306.19x = 1,108,169,951.52
  5. Step 5: Solve for x
    x = 1,108,169,951.52/53,306.19
  6. Step 6: Final answer
    x = 20,788.77

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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.