Home / 52,195.72-78,315.54-21,023.32

Finding the Fourth Proportional to 52,195.72, 78,315.54 and 21,023.32

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Solution

The fourth proportional to 52,195.72, 78,315.54 and 21,023.32 is: 31,543.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,195.72 : 78,315.54 = 21,023.32 : x
  2. Step 2: Convert to fraction form
    52,195.72/78,315.54 = 21,023.32/x
  3. Step 3: Cross multiply
    52,195.72x = 78,315.54 × 21,023.32
  4. Step 4: Simplify right side
    52,195.72x = 1,646,452,658.39
  5. Step 5: Solve for x
    x = 1,646,452,658.39/52,195.72
  6. Step 6: Final answer
    x = 31,543.83

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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.