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Finding the Fourth Proportional to 51,166.80, 70,610.12 and 28,810.96

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Solution

The fourth proportional to 51,166.80, 70,610.12 and 28,810.96 is: 39,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,166.80 : 70,610.12 = 28,810.96 : x
  2. Step 2: Convert to fraction form
    51,166.80/70,610.12 = 28,810.96/x
  3. Step 3: Cross multiply
    51,166.80x = 70,610.12 × 28,810.96
  4. Step 4: Simplify right side
    51,166.80x = 2,034,345,342.92
  5. Step 5: Solve for x
    x = 2,034,345,342.92/51,166.80
  6. Step 6: Final answer
    x = 39,759.09

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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.