Home / 78,249.80-117,218.17-36,072.19

Finding the Fourth Proportional to 78,249.80, 117,218.17 and 36,072.19

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Solution

The fourth proportional to 78,249.80, 117,218.17 and 36,072.19 is: 54,036.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,249.80 : 117,218.17 = 36,072.19 : x
  2. Step 2: Convert to fraction form
    78,249.80/117,218.17 = 36,072.19/x
  3. Step 3: Cross multiply
    78,249.80x = 117,218.17 × 36,072.19
  4. Step 4: Simplify right side
    78,249.80x = 4,228,316,099.69
  5. Step 5: Solve for x
    x = 4,228,316,099.69/78,249.80
  6. Step 6: Final answer
    x = 54,036.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.