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Finding the Fourth Proportional to 67,779.95, 101,675.79 and 17,859.65

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Solution

The fourth proportional to 67,779.95, 101,675.79 and 17,859.65 is: 26,791.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,779.95 : 101,675.79 = 17,859.65 : x
  2. Step 2: Convert to fraction form
    67,779.95/101,675.79 = 17,859.65/x
  3. Step 3: Cross multiply
    67,779.95x = 101,675.79 × 17,859.65
  4. Step 4: Simplify right side
    67,779.95x = 1,815,893,514.49
  5. Step 5: Solve for x
    x = 1,815,893,514.49/67,779.95
  6. Step 6: Final answer
    x = 26,791.01

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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.