Home / 39,129.48-54,029.70-36,144.20

Finding the Fourth Proportional to 39,129.48, 54,029.70 and 36,144.20

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Solution

The fourth proportional to 39,129.48, 54,029.70 and 36,144.20 is: 49,907.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,129.48 : 54,029.70 = 36,144.20 : x
  2. Step 2: Convert to fraction form
    39,129.48/54,029.70 = 36,144.20/x
  3. Step 3: Cross multiply
    39,129.48x = 54,029.70 × 36,144.20
  4. Step 4: Simplify right side
    39,129.48x = 1,952,860,282.74
  5. Step 5: Solve for x
    x = 1,952,860,282.74/39,129.48
  6. Step 6: Final answer
    x = 49,907.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.