Home / 78,318.91-107,998.40-46,481.66

Finding the Fourth Proportional to 78,318.91, 107,998.40 and 46,481.66

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Solution

The fourth proportional to 78,318.91, 107,998.40 and 46,481.66 is: 64,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,318.91 : 107,998.40 = 46,481.66 : x
  2. Step 2: Convert to fraction form
    78,318.91/107,998.40 = 46,481.66/x
  3. Step 3: Cross multiply
    78,318.91x = 107,998.40 × 46,481.66
  4. Step 4: Simplify right side
    78,318.91x = 5,019,944,890.55
  5. Step 5: Solve for x
    x = 5,019,944,890.55/78,318.91
  6. Step 6: Final answer
    x = 64,096.20

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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.