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Finding the Fourth Proportional to 65,163.02, 89,898.23 and 39,648.93

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Solution

The fourth proportional to 65,163.02, 89,898.23 and 39,648.93 is: 54,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,163.02 : 89,898.23 = 39,648.93 : x
  2. Step 2: Convert to fraction form
    65,163.02/89,898.23 = 39,648.93/x
  3. Step 3: Cross multiply
    65,163.02x = 89,898.23 × 39,648.93
  4. Step 4: Simplify right side
    65,163.02x = 3,564,368,390.40
  5. Step 5: Solve for x
    x = 3,564,368,390.40/65,163.02
  6. Step 6: Final answer
    x = 54,699.26

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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.