Home / 45,143.00-67,698.53-13,115.41

Finding the Fourth Proportional to 45,143.00, 67,698.53 and 13,115.41

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Solution

The fourth proportional to 45,143.00, 67,698.53 and 13,115.41 is: 19,668.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,143.00 : 67,698.53 = 13,115.41 : x
  2. Step 2: Convert to fraction form
    45,143.00/67,698.53 = 13,115.41/x
  3. Step 3: Cross multiply
    45,143.00x = 67,698.53 × 13,115.41
  4. Step 4: Simplify right side
    45,143.00x = 887,893,742.52
  5. Step 5: Solve for x
    x = 887,893,742.52/45,143.00
  6. Step 6: Final answer
    x = 19,668.47

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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.