Home / 87,579.03-120,852.10-57,316.41

Finding the Fourth Proportional to 87,579.03, 120,852.10 and 57,316.41

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Solution

The fourth proportional to 87,579.03, 120,852.10 and 57,316.41 is: 79,092.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,579.03 : 120,852.10 = 57,316.41 : x
  2. Step 2: Convert to fraction form
    87,579.03/120,852.10 = 57,316.41/x
  3. Step 3: Cross multiply
    87,579.03x = 120,852.10 × 57,316.41
  4. Step 4: Simplify right side
    87,579.03x = 6,926,808,512.96
  5. Step 5: Solve for x
    x = 6,926,808,512.96/87,579.03
  6. Step 6: Final answer
    x = 79,092.09

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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.