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Finding the Fourth Proportional to 64,779.24, 96,995.88 and 38,103

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Solution

The fourth proportional to 64,779.24, 96,995.88 and 38,103 is: 57,052.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,779.24 : 96,995.88 = 38,103 : x
  2. Step 2: Convert to fraction form
    64,779.24/96,995.88 = 38,103/x
  3. Step 3: Cross multiply
    64,779.24x = 96,995.88 × 38,103
  4. Step 4: Simplify right side
    64,779.24x = 3,695,834,015.64
  5. Step 5: Solve for x
    x = 3,695,834,015.64/64,779.24
  6. Step 6: Final answer
    x = 57,052.75

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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.