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Finding the Fourth Proportional to 78,896.95, 108,844.75 and 48,246.82

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Solution

The fourth proportional to 78,896.95, 108,844.75 and 48,246.82 is: 66,560.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,896.95 : 108,844.75 = 48,246.82 : x
  2. Step 2: Convert to fraction form
    78,896.95/108,844.75 = 48,246.82/x
  3. Step 3: Cross multiply
    78,896.95x = 108,844.75 × 48,246.82
  4. Step 4: Simplify right side
    78,896.95x = 5,251,413,737.58
  5. Step 5: Solve for x
    x = 5,251,413,737.58/78,896.95
  6. Step 6: Final answer
    x = 66,560.42

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1.5x scale

Why These Related Problems?

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