Home / 99,331.07-137,073.10-54,009.09

Finding the Fourth Proportional to 99,331.07, 137,073.10 and 54,009.09

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Solution

The fourth proportional to 99,331.07, 137,073.10 and 54,009.09 is: 74,530.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,331.07 : 137,073.10 = 54,009.09 : x
  2. Step 2: Convert to fraction form
    99,331.07/137,073.10 = 54,009.09/x
  3. Step 3: Cross multiply
    99,331.07x = 137,073.10 × 54,009.09
  4. Step 4: Simplify right side
    99,331.07x = 7,403,193,394.48
  5. Step 5: Solve for x
    x = 7,403,193,394.48/99,331.07
  6. Step 6: Final answer
    x = 74,530.49

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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.