Home / 51,200.20-70,662-28,541.26

Finding the Fourth Proportional to 51,200.20, 70,662 and 28,541.26

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Solution

The fourth proportional to 51,200.20, 70,662 and 28,541.26 is: 39,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,200.20 : 70,662 = 28,541.26 : x
  2. Step 2: Convert to fraction form
    51,200.20/70,662 = 28,541.26/x
  3. Step 3: Cross multiply
    51,200.20x = 70,662 × 28,541.26
  4. Step 4: Simplify right side
    51,200.20x = 2,016,782,514.12
  5. Step 5: Solve for x
    x = 2,016,782,514.12/51,200.20
  6. Step 6: Final answer
    x = 39,390.13

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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.