Home / 51,320.34-70,815.78-28,660.56

Finding the Fourth Proportional to 51,320.34, 70,815.78 and 28,660.56

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Solution

The fourth proportional to 51,320.34, 70,815.78 and 28,660.56 is: 39,548.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,320.34 : 70,815.78 = 28,660.56 : x
  2. Step 2: Convert to fraction form
    51,320.34/70,815.78 = 28,660.56/x
  3. Step 3: Cross multiply
    51,320.34x = 70,815.78 × 28,660.56
  4. Step 4: Simplify right side
    51,320.34x = 2,029,619,911.64
  5. Step 5: Solve for x
    x = 2,029,619,911.64/51,320.34
  6. Step 6: Final answer
    x = 39,548.06

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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.