Home / 42,893.28-64,251.36-31,812.48

Finding the Fourth Proportional to 42,893.28, 64,251.36 and 31,812.48

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Solution

The fourth proportional to 42,893.28, 64,251.36 and 31,812.48 is: 47,653.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,893.28 : 64,251.36 = 31,812.48 : x
  2. Step 2: Convert to fraction form
    42,893.28/64,251.36 = 31,812.48/x
  3. Step 3: Cross multiply
    42,893.28x = 64,251.36 × 31,812.48
  4. Step 4: Simplify right side
    42,893.28x = 2,043,995,104.97
  5. Step 5: Solve for x
    x = 2,043,995,104.97/42,893.28
  6. Step 6: Final answer
    x = 47,653.04

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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.