Home / 65,114.22-97,670.31-20,740.61

Finding the Fourth Proportional to 65,114.22, 97,670.31 and 20,740.61

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Solution

The fourth proportional to 65,114.22, 97,670.31 and 20,740.61 is: 31,110.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,114.22 : 97,670.31 = 20,740.61 : x
  2. Step 2: Convert to fraction form
    65,114.22/97,670.31 = 20,740.61/x
  3. Step 3: Cross multiply
    65,114.22x = 97,670.31 × 20,740.61
  4. Step 4: Simplify right side
    65,114.22x = 2,025,741,319.94
  5. Step 5: Solve for x
    x = 2,025,741,319.94/65,114.22
  6. Step 6: Final answer
    x = 31,110.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.