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Finding the Fourth Proportional to 52,816.59, 79,220.97 and 19,521.09

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Solution

The fourth proportional to 52,816.59, 79,220.97 and 19,521.09 is: 29,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,816.59 : 79,220.97 = 19,521.09 : x
  2. Step 2: Convert to fraction form
    52,816.59/79,220.97 = 19,521.09/x
  3. Step 3: Cross multiply
    52,816.59x = 79,220.97 × 19,521.09
  4. Step 4: Simplify right side
    52,816.59x = 1,546,479,685.26
  5. Step 5: Solve for x
    x = 1,546,479,685.26/52,816.59
  6. Step 6: Final answer
    x = 29,280.19

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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.