Home / 91,831.75-137,721.54-35,659.87

Finding the Fourth Proportional to 91,831.75, 137,721.54 and 35,659.87

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Solution

The fourth proportional to 91,831.75, 137,721.54 and 35,659.87 is: 53,479.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,831.75 : 137,721.54 = 35,659.87 : x
  2. Step 2: Convert to fraction form
    91,831.75/137,721.54 = 35,659.87/x
  3. Step 3: Cross multiply
    91,831.75x = 137,721.54 × 35,659.87
  4. Step 4: Simplify right side
    91,831.75x = 4,911,132,289.07
  5. Step 5: Solve for x
    x = 4,911,132,289.07/91,831.75
  6. Step 6: Final answer
    x = 53,479.68

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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.