Home / 52,129.86-78,136.47-22,503.30

Finding the Fourth Proportional to 52,129.86, 78,136.47 and 22,503.30

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Solution

The fourth proportional to 52,129.86, 78,136.47 and 22,503.30 is: 33,729.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,129.86 : 78,136.47 = 22,503.30 : x
  2. Step 2: Convert to fraction form
    52,129.86/78,136.47 = 22,503.30/x
  3. Step 3: Cross multiply
    52,129.86x = 78,136.47 × 22,503.30
  4. Step 4: Simplify right side
    52,129.86x = 1,758,328,425.35
  5. Step 5: Solve for x
    x = 1,758,328,425.35/52,129.86
  6. Step 6: Final answer
    x = 33,729.77

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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.