Home / 53,231.18-79,778.93-28,283.18

Finding the Fourth Proportional to 53,231.18, 79,778.93 and 28,283.18

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Solution

The fourth proportional to 53,231.18, 79,778.93 and 28,283.18 is: 42,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,231.18 : 79,778.93 = 28,283.18 : x
  2. Step 2: Convert to fraction form
    53,231.18/79,778.93 = 28,283.18/x
  3. Step 3: Cross multiply
    53,231.18x = 79,778.93 × 28,283.18
  4. Step 4: Simplify right side
    53,231.18x = 2,256,401,297.09
  5. Step 5: Solve for x
    x = 2,256,401,297.09/53,231.18
  6. Step 6: Final answer
    x = 42,388.72

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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.