Home / 43,330.65-64,995.98-12,161.85

Finding the Fourth Proportional to 43,330.65, 64,995.98 and 12,161.85

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Solution

The fourth proportional to 43,330.65, 64,995.98 and 12,161.85 is: 18,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,330.65 : 64,995.98 = 12,161.85 : x
  2. Step 2: Convert to fraction form
    43,330.65/64,995.98 = 12,161.85/x
  3. Step 3: Cross multiply
    43,330.65x = 64,995.98 × 12,161.85
  4. Step 4: Simplify right side
    43,330.65x = 790,471,298.55
  5. Step 5: Solve for x
    x = 790,471,298.55/43,330.65
  6. Step 6: Final answer
    x = 18,242.78

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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.