Home / 57,730.30-86,595.45-40,219.90

Finding the Fourth Proportional to 57,730.30, 86,595.45 and 40,219.90

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Solution

The fourth proportional to 57,730.30, 86,595.45 and 40,219.90 is: 60,329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,730.30 : 86,595.45 = 40,219.90 : x
  2. Step 2: Convert to fraction form
    57,730.30/86,595.45 = 40,219.90/x
  3. Step 3: Cross multiply
    57,730.30x = 86,595.45 × 40,219.90
  4. Step 4: Simplify right side
    57,730.30x = 3,482,860,339.46
  5. Step 5: Solve for x
    x = 3,482,860,339.46/57,730.30
  6. Step 6: Final answer
    x = 60,329.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.