Home / 91,381.26-137,070.45-29,050.86

Finding the Fourth Proportional to 91,381.26, 137,070.45 and 29,050.86

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Solution

The fourth proportional to 91,381.26, 137,070.45 and 29,050.86 is: 43,575.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,381.26 : 137,070.45 = 29,050.86 : x
  2. Step 2: Convert to fraction form
    91,381.26/137,070.45 = 29,050.86/x
  3. Step 3: Cross multiply
    91,381.26x = 137,070.45 × 29,050.86
  4. Step 4: Simplify right side
    91,381.26x = 3,982,014,453.09
  5. Step 5: Solve for x
    x = 3,982,014,453.09/91,381.26
  6. Step 6: Final answer
    x = 43,575.83

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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.