Home / 76,884.73-115,346.30-21,480.25

Finding the Fourth Proportional to 76,884.73, 115,346.30 and 21,480.25

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Solution

The fourth proportional to 76,884.73, 115,346.30 and 21,480.25 is: 32,225.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,884.73 : 115,346.30 = 21,480.25 : x
  2. Step 2: Convert to fraction form
    76,884.73/115,346.30 = 21,480.25/x
  3. Step 3: Cross multiply
    76,884.73x = 115,346.30 × 21,480.25
  4. Step 4: Simplify right side
    76,884.73x = 2,477,667,253.17
  5. Step 5: Solve for x
    x = 2,477,667,253.17/76,884.73
  6. Step 6: Final answer
    x = 32,225.74

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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.