Home / 60,311.10-90,450.45-20,880.30

Finding the Fourth Proportional to 60,311.10, 90,450.45 and 20,880.30

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Solution

The fourth proportional to 60,311.10, 90,450.45 and 20,880.30 is: 31,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,311.10 : 90,450.45 = 20,880.30 : x
  2. Step 2: Convert to fraction form
    60,311.10/90,450.45 = 20,880.30/x
  3. Step 3: Cross multiply
    60,311.10x = 90,450.45 × 20,880.30
  4. Step 4: Simplify right side
    60,311.10x = 1,888,632,531.14
  5. Step 5: Solve for x
    x = 1,888,632,531.14/60,311.10
  6. Step 6: Final answer
    x = 31,314.84

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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.