Home / 65,221.07-97,826.82-20,835.90

Finding the Fourth Proportional to 65,221.07, 97,826.82 and 20,835.90

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Solution

The fourth proportional to 65,221.07, 97,826.82 and 20,835.90 is: 31,252.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,221.07 : 97,826.82 = 20,835.90 : x
  2. Step 2: Convert to fraction form
    65,221.07/97,826.82 = 20,835.90/x
  3. Step 3: Cross multiply
    65,221.07x = 97,826.82 × 20,835.90
  4. Step 4: Simplify right side
    65,221.07x = 2,038,309,838.84
  5. Step 5: Solve for x
    x = 2,038,309,838.84/65,221.07
  6. Step 6: Final answer
    x = 31,252.32

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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.