Home / 75,626.50-104,364.57-42,091.78

Finding the Fourth Proportional to 75,626.50, 104,364.57 and 42,091.78

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Solution

The fourth proportional to 75,626.50, 104,364.57 and 42,091.78 is: 58,086.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,626.50 : 104,364.57 = 42,091.78 : x
  2. Step 2: Convert to fraction form
    75,626.50/104,364.57 = 42,091.78/x
  3. Step 3: Cross multiply
    75,626.50x = 104,364.57 × 42,091.78
  4. Step 4: Simplify right side
    75,626.50x = 4,392,890,520.23
  5. Step 5: Solve for x
    x = 4,392,890,520.23/75,626.50
  6. Step 6: Final answer
    x = 58,086.66

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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.