Home / 51,121.45-70,548.33-28,461.43

Finding the Fourth Proportional to 51,121.45, 70,548.33 and 28,461.43

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Solution

The fourth proportional to 51,121.45, 70,548.33 and 28,461.43 is: 39,277.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,121.45 : 70,548.33 = 28,461.43 : x
  2. Step 2: Convert to fraction form
    51,121.45/70,548.33 = 28,461.43/x
  3. Step 3: Cross multiply
    51,121.45x = 70,548.33 × 28,461.43
  4. Step 4: Simplify right side
    51,121.45x = 2,007,906,355.91
  5. Step 5: Solve for x
    x = 2,007,906,355.91/51,121.45
  6. Step 6: Final answer
    x = 39,277.18

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1.5x scale

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.