Home / 61,153.23-91,720-16,769.68

Finding the Fourth Proportional to 61,153.23, 91,720 and 16,769.68

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Solution

The fourth proportional to 61,153.23, 91,720 and 16,769.68 is: 25,151.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,153.23 : 91,720 = 16,769.68 : x
  2. Step 2: Convert to fraction form
    61,153.23/91,720 = 16,769.68/x
  3. Step 3: Cross multiply
    61,153.23x = 91,720 × 16,769.68
  4. Step 4: Simplify right side
    61,153.23x = 1,538,115,049.60
  5. Step 5: Solve for x
    x = 1,538,115,049.60/61,153.23
  6. Step 6: Final answer
    x = 25,151.82

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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.