Home / 51,913.28-71,645.64-31,783.46

Finding the Fourth Proportional to 51,913.28, 71,645.64 and 31,783.46

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Solution

The fourth proportional to 51,913.28, 71,645.64 and 31,783.46 is: 43,864.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,913.28 : 71,645.64 = 31,783.46 : x
  2. Step 2: Convert to fraction form
    51,913.28/71,645.64 = 31,783.46/x
  3. Step 3: Cross multiply
    51,913.28x = 71,645.64 × 31,783.46
  4. Step 4: Simplify right side
    51,913.28x = 2,277,146,333.11
  5. Step 5: Solve for x
    x = 2,277,146,333.11/51,913.28
  6. Step 6: Final answer
    x = 43,864.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.