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Finding the Fourth Proportional to 97,791, 134,951.70 and 53,079

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Solution

The fourth proportional to 97,791, 134,951.70 and 53,079 is: 73,249.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,791 : 134,951.70 = 53,079 : x
  2. Step 2: Convert to fraction form
    97,791/134,951.70 = 53,079/x
  3. Step 3: Cross multiply
    97,791x = 134,951.70 × 53,079
  4. Step 4: Simplify right side
    97,791x = 7,163,101,284.30
  5. Step 5: Solve for x
    x = 7,163,101,284.30/97,791
  6. Step 6: Final answer
    x = 73,249.09

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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.