Home / 89,787.59-123,904.60-49,500.42

Finding the Fourth Proportional to 89,787.59, 123,904.60 and 49,500.42

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Solution

The fourth proportional to 89,787.59, 123,904.60 and 49,500.42 is: 68,309.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,787.59 : 123,904.60 = 49,500.42 : x
  2. Step 2: Convert to fraction form
    89,787.59/123,904.60 = 49,500.42/x
  3. Step 3: Cross multiply
    89,787.59x = 123,904.60 × 49,500.42
  4. Step 4: Simplify right side
    89,787.59x = 6,133,329,739.93
  5. Step 5: Solve for x
    x = 6,133,329,739.93/89,787.59
  6. Step 6: Final answer
    x = 68,309.33

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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.