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Finding the Fourth Proportional to 92,777.67, 138,930.99 and 77,745.27

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Solution

The fourth proportional to 92,777.67, 138,930.99 and 77,745.27 is: 116,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,777.67 : 138,930.99 = 77,745.27 : x
  2. Step 2: Convert to fraction form
    92,777.67/138,930.99 = 77,745.27/x
  3. Step 3: Cross multiply
    92,777.67x = 138,930.99 × 77,745.27
  4. Step 4: Simplify right side
    92,777.67x = 10,801,227,328.92
  5. Step 5: Solve for x
    x = 10,801,227,328.92/92,777.67
  6. Step 6: Final answer
    x = 116,420.55

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1.5x scale

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.