Home / 51,182.20-70,630.50-28,826.20

Finding the Fourth Proportional to 51,182.20, 70,630.50 and 28,826.20

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Solution

The fourth proportional to 51,182.20, 70,630.50 and 28,826.20 is: 39,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,182.20 : 70,630.50 = 28,826.20 : x
  2. Step 2: Convert to fraction form
    51,182.20/70,630.50 = 28,826.20/x
  3. Step 3: Cross multiply
    51,182.20x = 70,630.50 × 28,826.20
  4. Step 4: Simplify right side
    51,182.20x = 2,036,008,919.10
  5. Step 5: Solve for x
    x = 2,036,008,919.10/51,182.20
  6. Step 6: Final answer
    x = 39,779.63

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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.