Home / 51,210.20-76,826.10-21,612.80

Finding the Fourth Proportional to 51,210.20, 76,826.10 and 21,612.80

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Solution

The fourth proportional to 51,210.20, 76,826.10 and 21,612.80 is: 32,423.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,210.20 : 76,826.10 = 21,612.80 : x
  2. Step 2: Convert to fraction form
    51,210.20/76,826.10 = 21,612.80/x
  3. Step 3: Cross multiply
    51,210.20x = 76,826.10 × 21,612.80
  4. Step 4: Simplify right side
    51,210.20x = 1,660,427,134.08
  5. Step 5: Solve for x
    x = 1,660,427,134.08/51,210.20
  6. Step 6: Final answer
    x = 32,423.76

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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.