Home / 99,831.37-137,766.64-54,509.34

Finding the Fourth Proportional to 99,831.37, 137,766.64 and 54,509.34

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Solution

The fourth proportional to 99,831.37, 137,766.64 and 54,509.34 is: 75,222.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,831.37 : 137,766.64 = 54,509.34 : x
  2. Step 2: Convert to fraction form
    99,831.37/137,766.64 = 54,509.34/x
  3. Step 3: Cross multiply
    99,831.37x = 137,766.64 × 54,509.34
  4. Step 4: Simplify right side
    99,831.37x = 7,509,568,620.42
  5. Step 5: Solve for x
    x = 7,509,568,620.42/99,831.37
  6. Step 6: Final answer
    x = 75,222.53

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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.