Home / 65,090.39-97,631.46-20,748.96

Finding the Fourth Proportional to 65,090.39, 97,631.46 and 20,748.96

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Solution

The fourth proportional to 65,090.39, 97,631.46 and 20,748.96 is: 31,122.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,090.39 : 97,631.46 = 20,748.96 : x
  2. Step 2: Convert to fraction form
    65,090.39/97,631.46 = 20,748.96/x
  3. Step 3: Cross multiply
    65,090.39x = 97,631.46 × 20,748.96
  4. Step 4: Simplify right side
    65,090.39x = 2,025,751,258.28
  5. Step 5: Solve for x
    x = 2,025,751,258.28/65,090.39
  6. Step 6: Final answer
    x = 31,122.13

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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.