Home / 96,731.20-133,488.32-54,289.60

Finding the Fourth Proportional to 96,731.20, 133,488.32 and 54,289.60

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Solution

The fourth proportional to 96,731.20, 133,488.32 and 54,289.60 is: 74,919.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,731.20 : 133,488.32 = 54,289.60 : x
  2. Step 2: Convert to fraction form
    96,731.20/133,488.32 = 54,289.60/x
  3. Step 3: Cross multiply
    96,731.20x = 133,488.32 × 54,289.60
  4. Step 4: Simplify right side
    96,731.20x = 7,247,027,497.47
  5. Step 5: Solve for x
    x = 7,247,027,497.47/96,731.20
  6. Step 6: Final answer
    x = 74,919.23

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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.