Home / 77,333.55-116,000.24-21,174.09

Finding the Fourth Proportional to 77,333.55, 116,000.24 and 21,174.09

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Solution

The fourth proportional to 77,333.55, 116,000.24 and 21,174.09 is: 31,761.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,333.55 : 116,000.24 = 21,174.09 : x
  2. Step 2: Convert to fraction form
    77,333.55/116,000.24 = 21,174.09/x
  3. Step 3: Cross multiply
    77,333.55x = 116,000.24 × 21,174.09
  4. Step 4: Simplify right side
    77,333.55x = 2,456,199,415.91
  5. Step 5: Solve for x
    x = 2,456,199,415.91/77,333.55
  6. Step 6: Final answer
    x = 31,761.11

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1.5x scale

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.