Home / 61,121.36-91,682.12-16,748.50

Finding the Fourth Proportional to 61,121.36, 91,682.12 and 16,748.50

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Solution

The fourth proportional to 61,121.36, 91,682.12 and 16,748.50 is: 25,122.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,121.36 : 91,682.12 = 16,748.50 : x
  2. Step 2: Convert to fraction form
    61,121.36/91,682.12 = 16,748.50/x
  3. Step 3: Cross multiply
    61,121.36x = 91,682.12 × 16,748.50
  4. Step 4: Simplify right side
    61,121.36x = 1,535,537,986.82
  5. Step 5: Solve for x
    x = 1,535,537,986.82/61,121.36
  6. Step 6: Final answer
    x = 25,122.77

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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.