Home / 78,297.18-117,507.33-36,196.62

Finding the Fourth Proportional to 78,297.18, 117,507.33 and 36,196.62

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Solution

The fourth proportional to 78,297.18, 117,507.33 and 36,196.62 is: 54,323.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,297.18 : 117,507.33 = 36,196.62 : x
  2. Step 2: Convert to fraction form
    78,297.18/117,507.33 = 36,196.62/x
  3. Step 3: Cross multiply
    78,297.18x = 117,507.33 × 36,196.62
  4. Step 4: Simplify right side
    78,297.18x = 4,253,368,171.22
  5. Step 5: Solve for x
    x = 4,253,368,171.22/78,297.18
  6. Step 6: Final answer
    x = 54,323.39

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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.