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Finding the Fourth Proportional to 65,103.06, 89,848.92 and 39,611.23

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Solution

The fourth proportional to 65,103.06, 89,848.92 and 39,611.23 is: 54,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,103.06 : 89,848.92 = 39,611.23 : x
  2. Step 2: Convert to fraction form
    65,103.06/89,848.92 = 39,611.23/x
  3. Step 3: Cross multiply
    65,103.06x = 89,848.92 × 39,611.23
  4. Step 4: Simplify right side
    65,103.06x = 3,559,026,235.37
  5. Step 5: Solve for x
    x = 3,559,026,235.37/65,103.06
  6. Step 6: Final answer
    x = 54,667.57

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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.