Home / 52,728.39-72,765.18-28,855.07

Finding the Fourth Proportional to 52,728.39, 72,765.18 and 28,855.07

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Solution

The fourth proportional to 52,728.39, 72,765.18 and 28,855.07 is: 39,819.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,728.39 : 72,765.18 = 28,855.07 : x
  2. Step 2: Convert to fraction form
    52,728.39/72,765.18 = 28,855.07/x
  3. Step 3: Cross multiply
    52,728.39x = 72,765.18 × 28,855.07
  4. Step 4: Simplify right side
    52,728.39x = 2,099,643,998.64
  5. Step 5: Solve for x
    x = 2,099,643,998.64/52,728.39
  6. Step 6: Final answer
    x = 39,819.99

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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.