Home / 43,128.05-64,701.18-13,548.87

Finding the Fourth Proportional to 43,128.05, 64,701.18 and 13,548.87

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Solution

The fourth proportional to 43,128.05, 64,701.18 and 13,548.87 is: 20,326.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,128.05 : 64,701.18 = 13,548.87 : x
  2. Step 2: Convert to fraction form
    43,128.05/64,701.18 = 13,548.87/x
  3. Step 3: Cross multiply
    43,128.05x = 64,701.18 × 13,548.87
  4. Step 4: Simplify right side
    43,128.05x = 876,627,876.67
  5. Step 5: Solve for x
    x = 876,627,876.67/43,128.05
  6. Step 6: Final answer
    x = 20,326.17

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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.