Home / 51,127-70,555.26-28,771.48

Finding the Fourth Proportional to 51,127, 70,555.26 and 28,771.48

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Solution

The fourth proportional to 51,127, 70,555.26 and 28,771.48 is: 39,704.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,127 : 70,555.26 = 28,771.48 : x
  2. Step 2: Convert to fraction form
    51,127/70,555.26 = 28,771.48/x
  3. Step 3: Cross multiply
    51,127x = 70,555.26 × 28,771.48
  4. Step 4: Simplify right side
    51,127x = 2,029,979,251.98
  5. Step 5: Solve for x
    x = 2,029,979,251.98/51,127
  6. Step 6: Final answer
    x = 39,704.64

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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.