Home / 43,311.75-64,967.63-10,479.75

Finding the Fourth Proportional to 43,311.75, 64,967.63 and 10,479.75

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Solution

The fourth proportional to 43,311.75, 64,967.63 and 10,479.75 is: 15,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,311.75 : 64,967.63 = 10,479.75 : x
  2. Step 2: Convert to fraction form
    43,311.75/64,967.63 = 10,479.75/x
  3. Step 3: Cross multiply
    43,311.75x = 64,967.63 × 10,479.75
  4. Step 4: Simplify right side
    43,311.75x = 680,844,468.09
  5. Step 5: Solve for x
    x = 680,844,468.09/43,311.75
  6. Step 6: Final answer
    x = 15,719.63

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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.