Home / 65,685.13-90,650.07-37,390.82

Finding the Fourth Proportional to 65,685.13, 90,650.07 and 37,390.82

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Solution

The fourth proportional to 65,685.13, 90,650.07 and 37,390.82 is: 51,601.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,685.13 : 90,650.07 = 37,390.82 : x
  2. Step 2: Convert to fraction form
    65,685.13/90,650.07 = 37,390.82/x
  3. Step 3: Cross multiply
    65,685.13x = 90,650.07 × 37,390.82
  4. Step 4: Simplify right side
    65,685.13x = 3,389,479,997.11
  5. Step 5: Solve for x
    x = 3,389,479,997.11/65,685.13
  6. Step 6: Final answer
    x = 51,601.94

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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.