Home / 42,278.92-63,419-20,094.56

Finding the Fourth Proportional to 42,278.92, 63,419 and 20,094.56

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Solution

The fourth proportional to 42,278.92, 63,419 and 20,094.56 is: 30,142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,278.92 : 63,419 = 20,094.56 : x
  2. Step 2: Convert to fraction form
    42,278.92/63,419 = 20,094.56/x
  3. Step 3: Cross multiply
    42,278.92x = 63,419 × 20,094.56
  4. Step 4: Simplify right side
    42,278.92x = 1,274,376,900.64
  5. Step 5: Solve for x
    x = 1,274,376,900.64/42,278.92
  6. Step 6: Final answer
    x = 30,142.13

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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.