Home / 65,815.43-90,825.30-37,141.16

Finding the Fourth Proportional to 65,815.43, 90,825.30 and 37,141.16

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Solution

The fourth proportional to 65,815.43, 90,825.30 and 37,141.16 is: 51,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,815.43 : 90,825.30 = 37,141.16 : x
  2. Step 2: Convert to fraction form
    65,815.43/90,825.30 = 37,141.16/x
  3. Step 3: Cross multiply
    65,815.43x = 90,825.30 × 37,141.16
  4. Step 4: Simplify right side
    65,815.43x = 3,373,356,999.35
  5. Step 5: Solve for x
    x = 3,373,356,999.35/65,815.43
  6. Step 6: Final answer
    x = 51,254.80

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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.