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Finding the Fourth Proportional to 92,919.57, 128,228.38 and 50,477.73

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Solution

The fourth proportional to 92,919.57, 128,228.38 and 50,477.73 is: 69,658.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,919.57 : 128,228.38 = 50,477.73 : x
  2. Step 2: Convert to fraction form
    92,919.57/128,228.38 = 50,477.73/x
  3. Step 3: Cross multiply
    92,919.57x = 128,228.38 × 50,477.73
  4. Step 4: Simplify right side
    92,919.57x = 6,472,677,417.78
  5. Step 5: Solve for x
    x = 6,472,677,417.78/92,919.57
  6. Step 6: Final answer
    x = 69,658.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.