Home / 45,520.28-68,296.77-20,541.30

Finding the Fourth Proportional to 45,520.28, 68,296.77 and 20,541.30

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Solution

The fourth proportional to 45,520.28, 68,296.77 and 20,541.30 is: 30,819.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,520.28 : 68,296.77 = 20,541.30 : x
  2. Step 2: Convert to fraction form
    45,520.28/68,296.77 = 20,541.30/x
  3. Step 3: Cross multiply
    45,520.28x = 68,296.77 × 20,541.30
  4. Step 4: Simplify right side
    45,520.28x = 1,402,904,185.49
  5. Step 5: Solve for x
    x = 1,402,904,185.49/45,520.28
  6. Step 6: Final answer
    x = 30,819.32

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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.