Home / 53,305.19-79,948.11-13,859.86

Finding the Fourth Proportional to 53,305.19, 79,948.11 and 13,859.86

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Solution

The fourth proportional to 53,305.19, 79,948.11 and 13,859.86 is: 20,787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,305.19 : 79,948.11 = 13,859.86 : x
  2. Step 2: Convert to fraction form
    53,305.19/79,948.11 = 13,859.86/x
  3. Step 3: Cross multiply
    53,305.19x = 79,948.11 × 13,859.86
  4. Step 4: Simplify right side
    53,305.19x = 1,108,069,212.12
  5. Step 5: Solve for x
    x = 1,108,069,212.12/53,305.19
  6. Step 6: Final answer
    x = 20,787.27

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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.