Home / 65,784.08-90,761.31-40,263.84

Finding the Fourth Proportional to 65,784.08, 90,761.31 and 40,263.84

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Solution

The fourth proportional to 65,784.08, 90,761.31 and 40,263.84 is: 55,551.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,784.08 : 90,761.31 = 40,263.84 : x
  2. Step 2: Convert to fraction form
    65,784.08/90,761.31 = 40,263.84/x
  3. Step 3: Cross multiply
    65,784.08x = 90,761.31 × 40,263.84
  4. Step 4: Simplify right side
    65,784.08x = 3,654,398,864.03
  5. Step 5: Solve for x
    x = 3,654,398,864.03/65,784.08
  6. Step 6: Final answer
    x = 55,551.42

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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.