Home / 99,331.82-137,080.83-54,009.74

Finding the Fourth Proportional to 99,331.82, 137,080.83 and 54,009.74

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Solution

The fourth proportional to 99,331.82, 137,080.83 and 54,009.74 is: 74,535.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,331.82 : 137,080.83 = 54,009.74 : x
  2. Step 2: Convert to fraction form
    99,331.82/137,080.83 = 54,009.74/x
  3. Step 3: Cross multiply
    99,331.82x = 137,080.83 × 54,009.74
  4. Step 4: Simplify right side
    99,331.82x = 7,403,699,987.28
  5. Step 5: Solve for x
    x = 7,403,699,987.28/99,331.82
  6. Step 6: Final answer
    x = 74,535.03

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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.