Home / 90,845.92-125,509.57-69,410.69

Finding the Fourth Proportional to 90,845.92, 125,509.57 and 69,410.69

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Solution

The fourth proportional to 90,845.92, 125,509.57 and 69,410.69 is: 95,895.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,845.92 : 125,509.57 = 69,410.69 : x
  2. Step 2: Convert to fraction form
    90,845.92/125,509.57 = 69,410.69/x
  3. Step 3: Cross multiply
    90,845.92x = 125,509.57 × 69,410.69
  4. Step 4: Simplify right side
    90,845.92x = 8,711,705,194.48
  5. Step 5: Solve for x
    x = 8,711,705,194.48/90,845.92
  6. Step 6: Final answer
    x = 95,895.39

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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.