Home / 52,472.08-78,720.42-20,884.05

Finding the Fourth Proportional to 52,472.08, 78,720.42 and 20,884.05

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Solution

The fourth proportional to 52,472.08, 78,720.42 and 20,884.05 is: 31,330.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,472.08 : 78,720.42 = 20,884.05 : x
  2. Step 2: Convert to fraction form
    52,472.08/78,720.42 = 20,884.05/x
  3. Step 3: Cross multiply
    52,472.08x = 78,720.42 × 20,884.05
  4. Step 4: Simplify right side
    52,472.08x = 1,644,001,653.07
  5. Step 5: Solve for x
    x = 1,644,001,653.07/52,472.08
  6. Step 6: Final answer
    x = 31,330.98

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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.