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Finding the Fourth Proportional to 77,773.70, 116,564.55 and 52,813.70

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Solution

The fourth proportional to 77,773.70, 116,564.55 and 52,813.70 is: 79,155.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,773.70 : 116,564.55 = 52,813.70 : x
  2. Step 2: Convert to fraction form
    77,773.70/116,564.55 = 52,813.70/x
  3. Step 3: Cross multiply
    77,773.70x = 116,564.55 × 52,813.70
  4. Step 4: Simplify right side
    77,773.70x = 6,156,205,174.34
  5. Step 5: Solve for x
    x = 6,156,205,174.34/77,773.70
  6. Step 6: Final answer
    x = 79,155.36

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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.