Home / 53,250.86-79,878.32-13,806.92

Finding the Fourth Proportional to 53,250.86, 79,878.32 and 13,806.92

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Solution

The fourth proportional to 53,250.86, 79,878.32 and 13,806.92 is: 20,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,250.86 : 79,878.32 = 13,806.92 : x
  2. Step 2: Convert to fraction form
    53,250.86/79,878.32 = 13,806.92/x
  3. Step 3: Cross multiply
    53,250.86x = 79,878.32 × 13,806.92
  4. Step 4: Simplify right side
    53,250.86x = 1,102,873,573.97
  5. Step 5: Solve for x
    x = 1,102,873,573.97/53,250.86
  6. Step 6: Final answer
    x = 20,710.91

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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.