Home / 80,924.90-121,388.47-31,007.52

Finding the Fourth Proportional to 80,924.90, 121,388.47 and 31,007.52

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Solution

The fourth proportional to 80,924.90, 121,388.47 and 31,007.52 is: 46,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,924.90 : 121,388.47 = 31,007.52 : x
  2. Step 2: Convert to fraction form
    80,924.90/121,388.47 = 31,007.52/x
  3. Step 3: Cross multiply
    80,924.90x = 121,388.47 × 31,007.52
  4. Step 4: Simplify right side
    80,924.90x = 3,763,955,333.78
  5. Step 5: Solve for x
    x = 3,763,955,333.78/80,924.90
  6. Step 6: Final answer
    x = 46,511.71

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1.5x scale

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.