Home / 61,146-91,721.70-16,771.74

Finding the Fourth Proportional to 61,146, 91,721.70 and 16,771.74

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Solution

The fourth proportional to 61,146, 91,721.70 and 16,771.74 is: 25,158.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,146 : 91,721.70 = 16,771.74 : x
  2. Step 2: Convert to fraction form
    61,146/91,721.70 = 16,771.74/x
  3. Step 3: Cross multiply
    61,146x = 91,721.70 × 16,771.74
  4. Step 4: Simplify right side
    61,146x = 1,538,332,504.76
  5. Step 5: Solve for x
    x = 1,538,332,504.76/61,146
  6. Step 6: Final answer
    x = 25,158.35

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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.