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Finding the Fourth Proportional to 51,022.80, 76,541.40 and 15,958.80

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Solution

The fourth proportional to 51,022.80, 76,541.40 and 15,958.80 is: 23,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,022.80 : 76,541.40 = 15,958.80 : x
  2. Step 2: Convert to fraction form
    51,022.80/76,541.40 = 15,958.80/x
  3. Step 3: Cross multiply
    51,022.80x = 76,541.40 × 15,958.80
  4. Step 4: Simplify right side
    51,022.80x = 1,221,508,894.32
  5. Step 5: Solve for x
    x = 1,221,508,894.32/51,022.80
  6. Step 6: Final answer
    x = 23,940.45

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1.5x scale

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.