Home / 80,846.40-121,269.60-25,435.20

Finding the Fourth Proportional to 80,846.40, 121,269.60 and 25,435.20

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Solution

The fourth proportional to 80,846.40, 121,269.60 and 25,435.20 is: 38,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,846.40 : 121,269.60 = 25,435.20 : x
  2. Step 2: Convert to fraction form
    80,846.40/121,269.60 = 25,435.20/x
  3. Step 3: Cross multiply
    80,846.40x = 121,269.60 × 25,435.20
  4. Step 4: Simplify right side
    80,846.40x = 3,084,516,529.92
  5. Step 5: Solve for x
    x = 3,084,516,529.92/80,846.40
  6. Step 6: Final answer
    x = 38,152.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.