Home / 91,207.36-125,831.52-55,383.84

Finding the Fourth Proportional to 91,207.36, 125,831.52 and 55,383.84

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Solution

The fourth proportional to 91,207.36, 125,831.52 and 55,383.84 is: 76,408.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,207.36 : 125,831.52 = 55,383.84 : x
  2. Step 2: Convert to fraction form
    91,207.36/125,831.52 = 55,383.84/x
  3. Step 3: Cross multiply
    91,207.36x = 125,831.52 × 55,383.84
  4. Step 4: Simplify right side
    91,207.36x = 6,969,032,770.64
  5. Step 5: Solve for x
    x = 6,969,032,770.64/91,207.36
  6. Step 6: Final answer
    x = 76,408.67

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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.