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Finding the Fourth Proportional to 89,885.73, 134,831.93 and 33,720.15

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Solution

The fourth proportional to 89,885.73, 134,831.93 and 33,720.15 is: 50,581.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,885.73 : 134,831.93 = 33,720.15 : x
  2. Step 2: Convert to fraction form
    89,885.73/134,831.93 = 33,720.15/x
  3. Step 3: Cross multiply
    89,885.73x = 134,831.93 × 33,720.15
  4. Step 4: Simplify right side
    89,885.73x = 4,546,552,735.79
  5. Step 5: Solve for x
    x = 4,546,552,735.79/89,885.73
  6. Step 6: Final answer
    x = 50,581.47

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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.