Home / 52,685.33-79,028.01-21,520.58

Finding the Fourth Proportional to 52,685.33, 79,028.01 and 21,520.58

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Solution

The fourth proportional to 52,685.33, 79,028.01 and 21,520.58 is: 32,280.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,685.33 : 79,028.01 = 21,520.58 : x
  2. Step 2: Convert to fraction form
    52,685.33/79,028.01 = 21,520.58/x
  3. Step 3: Cross multiply
    52,685.33x = 79,028.01 × 21,520.58
  4. Step 4: Simplify right side
    52,685.33x = 1,700,728,216.31
  5. Step 5: Solve for x
    x = 1,700,728,216.31/52,685.33
  6. Step 6: Final answer
    x = 32,280.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.