Home / 52,728.49-72,765.30-28,855.15

Finding the Fourth Proportional to 52,728.49, 72,765.30 and 28,855.15

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Solution

The fourth proportional to 52,728.49, 72,765.30 and 28,855.15 is: 39,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,728.49 : 72,765.30 = 28,855.15 : x
  2. Step 2: Convert to fraction form
    52,728.49/72,765.30 = 28,855.15/x
  3. Step 3: Cross multiply
    52,728.49x = 72,765.30 × 28,855.15
  4. Step 4: Simplify right side
    52,728.49x = 2,099,653,646.30
  5. Step 5: Solve for x
    x = 2,099,653,646.30/52,728.49
  6. Step 6: Final answer
    x = 39,820.10

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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.