Home / 45,088.68-67,648.56-20,145.96

Finding the Fourth Proportional to 45,088.68, 67,648.56 and 20,145.96

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Solution

The fourth proportional to 45,088.68, 67,648.56 and 20,145.96 is: 30,225.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,088.68 : 67,648.56 = 20,145.96 : x
  2. Step 2: Convert to fraction form
    45,088.68/67,648.56 = 20,145.96/x
  3. Step 3: Cross multiply
    45,088.68x = 67,648.56 × 20,145.96
  4. Step 4: Simplify right side
    45,088.68x = 1,362,845,183.82
  5. Step 5: Solve for x
    x = 1,362,845,183.82/45,088.68
  6. Step 6: Final answer
    x = 30,225.88

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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.