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Finding the Fourth Proportional to 52,727.79, 72,764.34 and 28,854.47

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Solution

The fourth proportional to 52,727.79, 72,764.34 and 28,854.47 is: 39,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,727.79 : 72,764.34 = 28,854.47 : x
  2. Step 2: Convert to fraction form
    52,727.79/72,764.34 = 28,854.47/x
  3. Step 3: Cross multiply
    52,727.79x = 72,764.34 × 28,854.47
  4. Step 4: Simplify right side
    52,727.79x = 2,099,576,101.78
  5. Step 5: Solve for x
    x = 2,099,576,101.78/52,727.79
  6. Step 6: Final answer
    x = 39,819.16

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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.