Home / 87,646.61-120,910.04-57,418.62

Finding the Fourth Proportional to 87,646.61, 120,910.04 and 57,418.62

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Solution

The fourth proportional to 87,646.61, 120,910.04 and 57,418.62 is: 79,210.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,646.61 : 120,910.04 = 57,418.62 : x
  2. Step 2: Convert to fraction form
    87,646.61/120,910.04 = 57,418.62/x
  3. Step 3: Cross multiply
    87,646.61x = 120,910.04 × 57,418.62
  4. Step 4: Simplify right side
    87,646.61x = 6,942,487,957.37
  5. Step 5: Solve for x
    x = 6,942,487,957.37/87,646.61
  6. Step 6: Final answer
    x = 79,210.00

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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.