Home / 75,905.40-104,778.90-67,933.74

Finding the Fourth Proportional to 75,905.40, 104,778.90 and 67,933.74

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Solution

The fourth proportional to 75,905.40, 104,778.90 and 67,933.74 is: 93,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,905.40 : 104,778.90 = 67,933.74 : x
  2. Step 2: Convert to fraction form
    75,905.40/104,778.90 = 67,933.74/x
  3. Step 3: Cross multiply
    75,905.40x = 104,778.90 × 67,933.74
  4. Step 4: Simplify right side
    75,905.40x = 7,118,022,550.09
  5. Step 5: Solve for x
    x = 7,118,022,550.09/75,905.40
  6. Step 6: Final answer
    x = 93,774.92

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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.