Home / 52,680.80-79,021.28-21,516.05

Finding the Fourth Proportional to 52,680.80, 79,021.28 and 21,516.05

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Solution

The fourth proportional to 52,680.80, 79,021.28 and 21,516.05 is: 32,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,680.80 : 79,021.28 = 21,516.05 : x
  2. Step 2: Convert to fraction form
    52,680.80/79,021.28 = 21,516.05/x
  3. Step 3: Cross multiply
    52,680.80x = 79,021.28 × 21,516.05
  4. Step 4: Simplify right side
    52,680.80x = 1,700,226,062.89
  5. Step 5: Solve for x
    x = 1,700,226,062.89/52,680.80
  6. Step 6: Final answer
    x = 32,274.11

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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.