Home / 65,087.15-97,644.49-20,717.57

Finding the Fourth Proportional to 65,087.15, 97,644.49 and 20,717.57

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Solution

The fourth proportional to 65,087.15, 97,644.49 and 20,717.57 is: 31,080.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,087.15 : 97,644.49 = 20,717.57 : x
  2. Step 2: Convert to fraction form
    65,087.15/97,644.49 = 20,717.57/x
  3. Step 3: Cross multiply
    65,087.15x = 97,644.49 × 20,717.57
  4. Step 4: Simplify right side
    65,087.15x = 2,022,956,749.01
  5. Step 5: Solve for x
    x = 2,022,956,749.01/65,087.15
  6. Step 6: Final answer
    x = 31,080.74

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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.