Home / 65,386.44-90,239.94-38,537.61

Finding the Fourth Proportional to 65,386.44, 90,239.94 and 38,537.61

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Solution

The fourth proportional to 65,386.44, 90,239.94 and 38,537.61 is: 53,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,386.44 : 90,239.94 = 38,537.61 : x
  2. Step 2: Convert to fraction form
    65,386.44/90,239.94 = 38,537.61/x
  3. Step 3: Cross multiply
    65,386.44x = 90,239.94 × 38,537.61
  4. Step 4: Simplify right side
    65,386.44x = 3,477,631,614.14
  5. Step 5: Solve for x
    x = 3,477,631,614.14/65,386.44
  6. Step 6: Final answer
    x = 53,185.82

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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.