Home / 87,011.14-120,075.36-49,285.39

Finding the Fourth Proportional to 87,011.14, 120,075.36 and 49,285.39

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Solution

The fourth proportional to 87,011.14, 120,075.36 and 49,285.39 is: 68,013.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,011.14 : 120,075.36 = 49,285.39 : x
  2. Step 2: Convert to fraction form
    87,011.14/120,075.36 = 49,285.39/x
  3. Step 3: Cross multiply
    87,011.14x = 120,075.36 × 49,285.39
  4. Step 4: Simplify right side
    87,011.14x = 5,917,960,946.99
  5. Step 5: Solve for x
    x = 5,917,960,946.99/87,011.14
  6. Step 6: Final answer
    x = 68,013.83

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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.