Home / 45,118.96-67,661.76-15,528.64

Finding the Fourth Proportional to 45,118.96, 67,661.76 and 15,528.64

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Solution

The fourth proportional to 45,118.96, 67,661.76 and 15,528.64 is: 23,287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,118.96 : 67,661.76 = 15,528.64 : x
  2. Step 2: Convert to fraction form
    45,118.96/67,661.76 = 15,528.64/x
  3. Step 3: Cross multiply
    45,118.96x = 67,661.76 × 15,528.64
  4. Step 4: Simplify right side
    45,118.96x = 1,050,695,112.81
  5. Step 5: Solve for x
    x = 1,050,695,112.81/45,118.96
  6. Step 6: Final answer
    x = 23,287.22

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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.