Home / 40,868.22-61,302.53-12,405.42

Finding the Fourth Proportional to 40,868.22, 61,302.53 and 12,405.42

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Solution

The fourth proportional to 40,868.22, 61,302.53 and 12,405.42 is: 18,608.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,868.22 : 61,302.53 = 12,405.42 : x
  2. Step 2: Convert to fraction form
    40,868.22/61,302.53 = 12,405.42/x
  3. Step 3: Cross multiply
    40,868.22x = 61,302.53 × 12,405.42
  4. Step 4: Simplify right side
    40,868.22x = 760,483,343.05
  5. Step 5: Solve for x
    x = 760,483,343.05/40,868.22
  6. Step 6: Final answer
    x = 18,608.18

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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.