Home / 52,124.55-78,157.20-20,517.48

Finding the Fourth Proportional to 52,124.55, 78,157.20 and 20,517.48

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Solution

The fourth proportional to 52,124.55, 78,157.20 and 20,517.48 is: 30,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,124.55 : 78,157.20 = 20,517.48 : x
  2. Step 2: Convert to fraction form
    52,124.55/78,157.20 = 20,517.48/x
  3. Step 3: Cross multiply
    52,124.55x = 78,157.20 × 20,517.48
  4. Step 4: Simplify right side
    52,124.55x = 1,603,588,417.83
  5. Step 5: Solve for x
    x = 1,603,588,417.83/52,124.55
  6. Step 6: Final answer
    x = 30,764.55

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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.