Home / 39,776.13-54,890.61-29,612.60

Finding the Fourth Proportional to 39,776.13, 54,890.61 and 29,612.60

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Solution

The fourth proportional to 39,776.13, 54,890.61 and 29,612.60 is: 40,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,776.13 : 54,890.61 = 29,612.60 : x
  2. Step 2: Convert to fraction form
    39,776.13/54,890.61 = 29,612.60/x
  3. Step 3: Cross multiply
    39,776.13x = 54,890.61 × 29,612.60
  4. Step 4: Simplify right side
    39,776.13x = 1,625,453,677.69
  5. Step 5: Solve for x
    x = 1,625,453,677.69/39,776.13
  6. Step 6: Final answer
    x = 40,865.05

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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.