Home / 78,532.44-117,716.40-38,496.12

Finding the Fourth Proportional to 78,532.44, 117,716.40 and 38,496.12

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Solution

The fourth proportional to 78,532.44, 117,716.40 and 38,496.12 is: 57,703.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,532.44 : 117,716.40 = 38,496.12 : x
  2. Step 2: Convert to fraction form
    78,532.44/117,716.40 = 38,496.12/x
  3. Step 3: Cross multiply
    78,532.44x = 117,716.40 × 38,496.12
  4. Step 4: Simplify right side
    78,532.44x = 4,531,624,660.37
  5. Step 5: Solve for x
    x = 4,531,624,660.37/78,532.44
  6. Step 6: Final answer
    x = 57,703.86

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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.