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Finding the Fourth Proportional to 52,759.96, 79,139.63 and 13,316.91

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Solution

The fourth proportional to 52,759.96, 79,139.63 and 13,316.91 is: 19,975.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,759.96 : 79,139.63 = 13,316.91 : x
  2. Step 2: Convert to fraction form
    52,759.96/79,139.63 = 13,316.91/x
  3. Step 3: Cross multiply
    52,759.96x = 79,139.63 × 13,316.91
  4. Step 4: Simplify right side
    52,759.96x = 1,053,895,066.66
  5. Step 5: Solve for x
    x = 1,053,895,066.66/52,759.96
  6. Step 6: Final answer
    x = 19,975.28

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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.