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Finding the Fourth Proportional to 65,345.28, 97,894.68 and 38,611.56

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Solution

The fourth proportional to 65,345.28, 97,894.68 and 38,611.56 is: 57,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,345.28 : 97,894.68 = 38,611.56 : x
  2. Step 2: Convert to fraction form
    65,345.28/97,894.68 = 38,611.56/x
  3. Step 3: Cross multiply
    65,345.28x = 97,894.68 × 38,611.56
  4. Step 4: Simplify right side
    65,345.28x = 3,779,866,310.50
  5. Step 5: Solve for x
    x = 3,779,866,310.50/65,345.28
  6. Step 6: Final answer
    x = 57,844.52

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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.