Home / 45,184.63-67,780.86-11,904.43

Finding the Fourth Proportional to 45,184.63, 67,780.86 and 11,904.43

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Solution

The fourth proportional to 45,184.63, 67,780.86 and 11,904.43 is: 17,857.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,184.63 : 67,780.86 = 11,904.43 : x
  2. Step 2: Convert to fraction form
    45,184.63/67,780.86 = 11,904.43/x
  3. Step 3: Cross multiply
    45,184.63x = 67,780.86 × 11,904.43
  4. Step 4: Simplify right side
    45,184.63x = 806,892,503.21
  5. Step 5: Solve for x
    x = 806,892,503.21/45,184.63
  6. Step 6: Final answer
    x = 17,857.68

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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.