Home / 87,994.10-121,400.04-57,795.80

Finding the Fourth Proportional to 87,994.10, 121,400.04 and 57,795.80

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Solution

The fourth proportional to 87,994.10, 121,400.04 and 57,795.80 is: 79,737.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,994.10 : 121,400.04 = 57,795.80 : x
  2. Step 2: Convert to fraction form
    87,994.10/121,400.04 = 57,795.80/x
  3. Step 3: Cross multiply
    87,994.10x = 121,400.04 × 57,795.80
  4. Step 4: Simplify right side
    87,994.10x = 7,016,412,431.83
  5. Step 5: Solve for x
    x = 7,016,412,431.83/87,994.10
  6. Step 6: Final answer
    x = 79,737.31

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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.