Home / 78,305.54-108,008.12-49,998.46

Finding the Fourth Proportional to 78,305.54, 108,008.12 and 49,998.46

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Solution

The fourth proportional to 78,305.54, 108,008.12 and 49,998.46 is: 68,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,305.54 : 108,008.12 = 49,998.46 : x
  2. Step 2: Convert to fraction form
    78,305.54/108,008.12 = 49,998.46/x
  3. Step 3: Cross multiply
    78,305.54x = 108,008.12 × 49,998.46
  4. Step 4: Simplify right side
    78,305.54x = 5,400,239,667.50
  5. Step 5: Solve for x
    x = 5,400,239,667.50/78,305.54
  6. Step 6: Final answer
    x = 68,963.70

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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.