Home / 52,063.28-78,127.04-20,467.80

Finding the Fourth Proportional to 52,063.28, 78,127.04 and 20,467.80

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Solution

The fourth proportional to 52,063.28, 78,127.04 and 20,467.80 is: 30,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,063.28 : 78,127.04 = 20,467.80 : x
  2. Step 2: Convert to fraction form
    52,063.28/78,127.04 = 20,467.80/x
  3. Step 3: Cross multiply
    52,063.28x = 78,127.04 × 20,467.80
  4. Step 4: Simplify right side
    52,063.28x = 1,599,088,629.31
  5. Step 5: Solve for x
    x = 1,599,088,629.31/52,063.28
  6. Step 6: Final answer
    x = 30,714.33

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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.