Home / 45,336.06-67,980.60-20,354.58

Finding the Fourth Proportional to 45,336.06, 67,980.60 and 20,354.58

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Solution

The fourth proportional to 45,336.06, 67,980.60 and 20,354.58 is: 30,521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,336.06 : 67,980.60 = 20,354.58 : x
  2. Step 2: Convert to fraction form
    45,336.06/67,980.60 = 20,354.58/x
  3. Step 3: Cross multiply
    45,336.06x = 67,980.60 × 20,354.58
  4. Step 4: Simplify right side
    45,336.06x = 1,383,716,561.15
  5. Step 5: Solve for x
    x = 1,383,716,561.15/45,336.06
  6. Step 6: Final answer
    x = 30,521.32

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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.