Home / 53,106.87-79,664.40-13,664.37

Finding the Fourth Proportional to 53,106.87, 79,664.40 and 13,664.37

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Solution

The fourth proportional to 53,106.87, 79,664.40 and 13,664.37 is: 20,497.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,106.87 : 79,664.40 = 13,664.37 : x
  2. Step 2: Convert to fraction form
    53,106.87/79,664.40 = 13,664.37/x
  3. Step 3: Cross multiply
    53,106.87x = 79,664.40 × 13,664.37
  4. Step 4: Simplify right side
    53,106.87x = 1,088,563,837.43
  5. Step 5: Solve for x
    x = 1,088,563,837.43/53,106.87
  6. Step 6: Final answer
    x = 20,497.61

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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.