Home / 61,136.20-91,704.30-53,360.20

Finding the Fourth Proportional to 61,136.20, 91,704.30 and 53,360.20

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Solution

The fourth proportional to 61,136.20, 91,704.30 and 53,360.20 is: 80,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,136.20 : 91,704.30 = 53,360.20 : x
  2. Step 2: Convert to fraction form
    61,136.20/91,704.30 = 53,360.20/x
  3. Step 3: Cross multiply
    61,136.20x = 91,704.30 × 53,360.20
  4. Step 4: Simplify right side
    61,136.20x = 4,893,359,788.86
  5. Step 5: Solve for x
    x = 4,893,359,788.86/61,136.20
  6. Step 6: Final answer
    x = 80,040.30

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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.