Home / 45,148.64-67,733.80-13,983.88

Finding the Fourth Proportional to 45,148.64, 67,733.80 and 13,983.88

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Solution

The fourth proportional to 45,148.64, 67,733.80 and 13,983.88 is: 20,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,148.64 : 67,733.80 = 13,983.88 : x
  2. Step 2: Convert to fraction form
    45,148.64/67,733.80 = 13,983.88/x
  3. Step 3: Cross multiply
    45,148.64x = 67,733.80 × 13,983.88
  4. Step 4: Simplify right side
    45,148.64x = 947,181,331.14
  5. Step 5: Solve for x
    x = 947,181,331.14/45,148.64
  6. Step 6: Final answer
    x = 20,979.18

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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.