Home / 47,814.09-71,719.30-12,753.45

Finding the Fourth Proportional to 47,814.09, 71,719.30 and 12,753.45

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Solution

The fourth proportional to 47,814.09, 71,719.30 and 12,753.45 is: 19,129.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,814.09 : 71,719.30 = 12,753.45 : x
  2. Step 2: Convert to fraction form
    47,814.09/71,719.30 = 12,753.45/x
  3. Step 3: Cross multiply
    47,814.09x = 71,719.30 × 12,753.45
  4. Step 4: Simplify right side
    47,814.09x = 914,668,506.59
  5. Step 5: Solve for x
    x = 914,668,506.59/47,814.09
  6. Step 6: Final answer
    x = 19,129.69

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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.