Home / 40,779.66-61,154.82-14,118.42

Finding the Fourth Proportional to 40,779.66, 61,154.82 and 14,118.42

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Solution

The fourth proportional to 40,779.66, 61,154.82 and 14,118.42 is: 21,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,779.66 : 61,154.82 = 14,118.42 : x
  2. Step 2: Convert to fraction form
    40,779.66/61,154.82 = 14,118.42/x
  3. Step 3: Cross multiply
    40,779.66x = 61,154.82 × 14,118.42
  4. Step 4: Simplify right side
    40,779.66x = 863,409,433.78
  5. Step 5: Solve for x
    x = 863,409,433.78/40,779.66
  6. Step 6: Final answer
    x = 21,172.55

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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.