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Finding the Fourth Proportional to 90,595.87, 125,027.90 and 50,309.91

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Solution

The fourth proportional to 90,595.87, 125,027.90 and 50,309.91 is: 69,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,595.87 : 125,027.90 = 50,309.91 : x
  2. Step 2: Convert to fraction form
    90,595.87/125,027.90 = 50,309.91/x
  3. Step 3: Cross multiply
    90,595.87x = 125,027.90 × 50,309.91
  4. Step 4: Simplify right side
    90,595.87x = 6,290,142,616.59
  5. Step 5: Solve for x
    x = 6,290,142,616.59/90,595.87
  6. Step 6: Final answer
    x = 69,430.79

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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.