Home / 45,421.41-68,124-13,823.81

Finding the Fourth Proportional to 45,421.41, 68,124 and 13,823.81

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Solution

The fourth proportional to 45,421.41, 68,124 and 13,823.81 is: 20,733.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,421.41 : 68,124 = 13,823.81 : x
  2. Step 2: Convert to fraction form
    45,421.41/68,124 = 13,823.81/x
  3. Step 3: Cross multiply
    45,421.41x = 68,124 × 13,823.81
  4. Step 4: Simplify right side
    45,421.41x = 941,732,891.82
  5. Step 5: Solve for x
    x = 941,732,891.82/45,421.41
  6. Step 6: Final answer
    x = 20,733.24

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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.