Home / 65,755.08-90,747.54-40,261.32

Finding the Fourth Proportional to 65,755.08, 90,747.54 and 40,261.32

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Solution

The fourth proportional to 65,755.08, 90,747.54 and 40,261.32 is: 55,564.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,755.08 : 90,747.54 = 40,261.32 : x
  2. Step 2: Convert to fraction form
    65,755.08/90,747.54 = 40,261.32/x
  3. Step 3: Cross multiply
    65,755.08x = 90,747.54 × 40,261.32
  4. Step 4: Simplify right side
    65,755.08x = 3,653,615,747.15
  5. Step 5: Solve for x
    x = 3,653,615,747.15/65,755.08
  6. Step 6: Final answer
    x = 55,564.01

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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.