Home / 78,123.48-117,180.36-33,719.04

Finding the Fourth Proportional to 78,123.48, 117,180.36 and 33,719.04

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Solution

The fourth proportional to 78,123.48, 117,180.36 and 33,719.04 is: 50,576.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,123.48 : 117,180.36 = 33,719.04 : x
  2. Step 2: Convert to fraction form
    78,123.48/117,180.36 = 33,719.04/x
  3. Step 3: Cross multiply
    78,123.48x = 117,180.36 × 33,719.04
  4. Step 4: Simplify right side
    78,123.48x = 3,951,209,246.05
  5. Step 5: Solve for x
    x = 3,951,209,246.05/78,123.48
  6. Step 6: Final answer
    x = 50,576.46

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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.