Home / 65,556.66-90,442.53-40,362.42

Finding the Fourth Proportional to 65,556.66, 90,442.53 and 40,362.42

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Solution

The fourth proportional to 65,556.66, 90,442.53 and 40,362.42 is: 55,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,556.66 : 90,442.53 = 40,362.42 : x
  2. Step 2: Convert to fraction form
    65,556.66/90,442.53 = 40,362.42/x
  3. Step 3: Cross multiply
    65,556.66x = 90,442.53 × 40,362.42
  4. Step 4: Simplify right side
    65,556.66x = 3,650,479,381.72
  5. Step 5: Solve for x
    x = 3,650,479,381.72/65,556.66
  6. Step 6: Final answer
    x = 55,684.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.