Home / 51,179.20-70,632.50-28,521.88

Finding the Fourth Proportional to 51,179.20, 70,632.50 and 28,521.88

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Solution

The fourth proportional to 51,179.20, 70,632.50 and 28,521.88 is: 39,363.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,179.20 : 70,632.50 = 28,521.88 : x
  2. Step 2: Convert to fraction form
    51,179.20/70,632.50 = 28,521.88/x
  3. Step 3: Cross multiply
    51,179.20x = 70,632.50 × 28,521.88
  4. Step 4: Simplify right side
    51,179.20x = 2,014,571,689.10
  5. Step 5: Solve for x
    x = 2,014,571,689.10/51,179.20
  6. Step 6: Final answer
    x = 39,363.09

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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.