Home / 87,592.02-120,870.04-57,329.42

Finding the Fourth Proportional to 87,592.02, 120,870.04 and 57,329.42

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Solution

The fourth proportional to 87,592.02, 120,870.04 and 57,329.42 is: 79,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,592.02 : 120,870.04 = 57,329.42 : x
  2. Step 2: Convert to fraction form
    87,592.02/120,870.04 = 57,329.42/x
  3. Step 3: Cross multiply
    87,592.02x = 120,870.04 × 57,329.42
  4. Step 4: Simplify right side
    87,592.02x = 6,929,409,288.58
  5. Step 5: Solve for x
    x = 6,929,409,288.58/87,592.02
  6. Step 6: Final answer
    x = 79,110.05

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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.