Home / 65,419.38-90,283.41-37,126.89

Finding the Fourth Proportional to 65,419.38, 90,283.41 and 37,126.89

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Solution

The fourth proportional to 65,419.38, 90,283.41 and 37,126.89 is: 51,237.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,419.38 : 90,283.41 = 37,126.89 : x
  2. Step 2: Convert to fraction form
    65,419.38/90,283.41 = 37,126.89/x
  3. Step 3: Cross multiply
    65,419.38x = 90,283.41 × 37,126.89
  4. Step 4: Simplify right side
    65,419.38x = 3,351,942,231.89
  5. Step 5: Solve for x
    x = 3,351,942,231.89/65,419.38
  6. Step 6: Final answer
    x = 51,237.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.