Home / 75,790.68-113,685.56-19,630.64

Finding the Fourth Proportional to 75,790.68, 113,685.56 and 19,630.64

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Solution

The fourth proportional to 75,790.68, 113,685.56 and 19,630.64 is: 29,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,790.68 : 113,685.56 = 19,630.64 : x
  2. Step 2: Convert to fraction form
    75,790.68/113,685.56 = 19,630.64/x
  3. Step 3: Cross multiply
    75,790.68x = 113,685.56 × 19,630.64
  4. Step 4: Simplify right side
    75,790.68x = 2,231,720,301.56
  5. Step 5: Solve for x
    x = 2,231,720,301.56/75,790.68
  6. Step 6: Final answer
    x = 29,445.84

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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.