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Finding the Fourth Proportional to 51,950.79, 71,682.99 and 30,722.31

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Solution

The fourth proportional to 51,950.79, 71,682.99 and 30,722.31 is: 42,391.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,950.79 : 71,682.99 = 30,722.31 : x
  2. Step 2: Convert to fraction form
    51,950.79/71,682.99 = 30,722.31/x
  3. Step 3: Cross multiply
    51,950.79x = 71,682.99 × 30,722.31
  4. Step 4: Simplify right side
    51,950.79x = 2,202,267,040.51
  5. Step 5: Solve for x
    x = 2,202,267,040.51/51,950.79
  6. Step 6: Final answer
    x = 42,391.41

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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.