Home / 87,010.64-120,074.67-49,284.89

Finding the Fourth Proportional to 87,010.64, 120,074.67 and 49,284.89

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Solution

The fourth proportional to 87,010.64, 120,074.67 and 49,284.89 is: 68,013.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,010.64 : 120,074.67 = 49,284.89 : x
  2. Step 2: Convert to fraction form
    87,010.64/120,074.67 = 49,284.89/x
  3. Step 3: Cross multiply
    87,010.64x = 120,074.67 × 49,284.89
  4. Step 4: Simplify right side
    87,010.64x = 5,917,866,302.36
  5. Step 5: Solve for x
    x = 5,917,866,302.36/87,010.64
  6. Step 6: Final answer
    x = 68,013.14

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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.