Home / 61,731.36-92,054.94-61,170

Finding the Fourth Proportional to 61,731.36, 92,054.94 and 61,170

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Solution

The fourth proportional to 61,731.36, 92,054.94 and 61,170 is: 91,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,731.36 : 92,054.94 = 61,170 : x
  2. Step 2: Convert to fraction form
    61,731.36/92,054.94 = 61,170/x
  3. Step 3: Cross multiply
    61,731.36x = 92,054.94 × 61,170
  4. Step 4: Simplify right side
    61,731.36x = 5,631,000,679.80
  5. Step 5: Solve for x
    x = 5,631,000,679.80/61,731.36
  6. Step 6: Final answer
    x = 91,217.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.