Home / 78,229.02-117,353.37-25,624.38

Finding the Fourth Proportional to 78,229.02, 117,353.37 and 25,624.38

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Solution

The fourth proportional to 78,229.02, 117,353.37 and 25,624.38 is: 38,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,229.02 : 117,353.37 = 25,624.38 : x
  2. Step 2: Convert to fraction form
    78,229.02/117,353.37 = 25,624.38/x
  3. Step 3: Cross multiply
    78,229.02x = 117,353.37 × 25,624.38
  4. Step 4: Simplify right side
    78,229.02x = 3,007,107,347.16
  5. Step 5: Solve for x
    x = 3,007,107,347.16/78,229.02
  6. Step 6: Final answer
    x = 38,439.79

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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.