Home / 75,865.92-113,783.52-20,448.96

Finding the Fourth Proportional to 75,865.92, 113,783.52 and 20,448.96

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Solution

The fourth proportional to 75,865.92, 113,783.52 and 20,448.96 is: 30,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,865.92 : 113,783.52 = 20,448.96 : x
  2. Step 2: Convert to fraction form
    75,865.92/113,783.52 = 20,448.96/x
  3. Step 3: Cross multiply
    75,865.92x = 113,783.52 × 20,448.96
  4. Step 4: Simplify right side
    75,865.92x = 2,326,754,649.14
  5. Step 5: Solve for x
    x = 2,326,754,649.14/75,865.92
  6. Step 6: Final answer
    x = 30,669.30

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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.