Home / 52,220.57-78,328.42-12,775.59

Finding the Fourth Proportional to 52,220.57, 78,328.42 and 12,775.59

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Solution

The fourth proportional to 52,220.57, 78,328.42 and 12,775.59 is: 19,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,220.57 : 78,328.42 = 12,775.59 : x
  2. Step 2: Convert to fraction form
    52,220.57/78,328.42 = 12,775.59/x
  3. Step 3: Cross multiply
    52,220.57x = 78,328.42 × 12,775.59
  4. Step 4: Simplify right side
    52,220.57x = 1,000,691,747.33
  5. Step 5: Solve for x
    x = 1,000,691,747.33/52,220.57
  6. Step 6: Final answer
    x = 19,162.79

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1.5x scale

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.