Home / 76,831.67-106,019.94-42,836.97

Finding the Fourth Proportional to 76,831.67, 106,019.94 and 42,836.97

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Solution

The fourth proportional to 76,831.67, 106,019.94 and 42,836.97 is: 59,110.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,831.67 : 106,019.94 = 42,836.97 : x
  2. Step 2: Convert to fraction form
    76,831.67/106,019.94 = 42,836.97/x
  3. Step 3: Cross multiply
    76,831.67x = 106,019.94 × 42,836.97
  4. Step 4: Simplify right side
    76,831.67x = 4,541,572,989.18
  5. Step 5: Solve for x
    x = 4,541,572,989.18/76,831.67
  6. Step 6: Final answer
    x = 59,110.69

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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.