Home / 65,478.24-90,367.92-37,190.88

Finding the Fourth Proportional to 65,478.24, 90,367.92 and 37,190.88

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Solution

The fourth proportional to 65,478.24, 90,367.92 and 37,190.88 is: 51,327.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,478.24 : 90,367.92 = 37,190.88 : x
  2. Step 2: Convert to fraction form
    65,478.24/90,367.92 = 37,190.88/x
  3. Step 3: Cross multiply
    65,478.24x = 90,367.92 × 37,190.88
  4. Step 4: Simplify right side
    65,478.24x = 3,360,862,468.57
  5. Step 5: Solve for x
    x = 3,360,862,468.57/65,478.24
  6. Step 6: Final answer
    x = 51,327.93

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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.