Home / 76,998.77-106,260.05-45,190.61

Finding the Fourth Proportional to 76,998.77, 106,260.05 and 45,190.61

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Solution

The fourth proportional to 76,998.77, 106,260.05 and 45,190.61 is: 62,364.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,998.77 : 106,260.05 = 45,190.61 : x
  2. Step 2: Convert to fraction form
    76,998.77/106,260.05 = 45,190.61/x
  3. Step 3: Cross multiply
    76,998.77x = 106,260.05 × 45,190.61
  4. Step 4: Simplify right side
    76,998.77x = 4,801,956,478.13
  5. Step 5: Solve for x
    x = 4,801,956,478.13/76,998.77
  6. Step 6: Final answer
    x = 62,364.07

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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.