Home / 87,635.28-120,904.20-60,801.60

Finding the Fourth Proportional to 87,635.28, 120,904.20 and 60,801.60

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Solution

The fourth proportional to 87,635.28, 120,904.20 and 60,801.60 is: 83,883.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635.28 : 120,904.20 = 60,801.60 : x
  2. Step 2: Convert to fraction form
    87,635.28/120,904.20 = 60,801.60/x
  3. Step 3: Cross multiply
    87,635.28x = 120,904.20 × 60,801.60
  4. Step 4: Simplify right side
    87,635.28x = 7,351,168,806.72
  5. Step 5: Solve for x
    x = 7,351,168,806.72/87,635.28
  6. Step 6: Final answer
    x = 83,883.67

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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.