Home / 61,278.12-91,831.68-33,137.64

Finding the Fourth Proportional to 61,278.12, 91,831.68 and 33,137.64

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Solution

The fourth proportional to 61,278.12, 91,831.68 and 33,137.64 is: 49,660.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,278.12 : 91,831.68 = 33,137.64 : x
  2. Step 2: Convert to fraction form
    61,278.12/91,831.68 = 33,137.64/x
  3. Step 3: Cross multiply
    61,278.12x = 91,831.68 × 33,137.64
  4. Step 4: Simplify right side
    61,278.12x = 3,043,085,152.44
  5. Step 5: Solve for x
    x = 3,043,085,152.44/61,278.12
  6. Step 6: Final answer
    x = 49,660.22

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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.