Home / 74,727.78-103,153.13-54,743.39

Finding the Fourth Proportional to 74,727.78, 103,153.13 and 54,743.39

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Solution

The fourth proportional to 74,727.78, 103,153.13 and 54,743.39 is: 75,566.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,727.78 : 103,153.13 = 54,743.39 : x
  2. Step 2: Convert to fraction form
    74,727.78/103,153.13 = 54,743.39/x
  3. Step 3: Cross multiply
    74,727.78x = 103,153.13 × 54,743.39
  4. Step 4: Simplify right side
    74,727.78x = 5,646,952,025.31
  5. Step 5: Solve for x
    x = 5,646,952,025.31/74,727.78
  6. Step 6: Final answer
    x = 75,566.97

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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.