Home / 91,779.60-137,613.94-41,169.36

Finding the Fourth Proportional to 91,779.60, 137,613.94 and 41,169.36

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Solution

The fourth proportional to 91,779.60, 137,613.94 and 41,169.36 is: 61,729.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,779.60 : 137,613.94 = 41,169.36 : x
  2. Step 2: Convert to fraction form
    91,779.60/137,613.94 = 41,169.36/x
  3. Step 3: Cross multiply
    91,779.60x = 137,613.94 × 41,169.36
  4. Step 4: Simplify right side
    91,779.60x = 5,665,477,836.88
  5. Step 5: Solve for x
    x = 5,665,477,836.88/91,779.60
  6. Step 6: Final answer
    x = 61,729.16

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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.