Home / 52,520.63-78,760.40-18,317.78

Finding the Fourth Proportional to 52,520.63, 78,760.40 and 18,317.78

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Solution

The fourth proportional to 52,520.63, 78,760.40 and 18,317.78 is: 27,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,520.63 : 78,760.40 = 18,317.78 : x
  2. Step 2: Convert to fraction form
    52,520.63/78,760.40 = 18,317.78/x
  3. Step 3: Cross multiply
    52,520.63x = 78,760.40 × 18,317.78
  4. Step 4: Simplify right side
    52,520.63x = 1,442,715,194.52
  5. Step 5: Solve for x
    x = 1,442,715,194.52/52,520.63
  6. Step 6: Final answer
    x = 27,469.49

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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.