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Finding the Fourth Proportional to 51,710.69, 71,358.34 and 28,739.44

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Solution

The fourth proportional to 51,710.69, 71,358.34 and 28,739.44 is: 39,659.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,710.69 : 71,358.34 = 28,739.44 : x
  2. Step 2: Convert to fraction form
    51,710.69/71,358.34 = 28,739.44/x
  3. Step 3: Cross multiply
    51,710.69x = 71,358.34 × 28,739.44
  4. Step 4: Simplify right side
    51,710.69x = 2,050,798,883.00
  5. Step 5: Solve for x
    x = 2,050,798,883.00/51,710.69
  6. Step 6: Final answer
    x = 39,659.09

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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.