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Finding the Fourth Proportional to 51,352.92, 70,866.50 and 30,128.13

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Solution

The fourth proportional to 51,352.92, 70,866.50 and 30,128.13 is: 41,576.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,352.92 : 70,866.50 = 30,128.13 : x
  2. Step 2: Convert to fraction form
    51,352.92/70,866.50 = 30,128.13/x
  3. Step 3: Cross multiply
    51,352.92x = 70,866.50 × 30,128.13
  4. Step 4: Simplify right side
    51,352.92x = 2,135,074,974.00
  5. Step 5: Solve for x
    x = 2,135,074,974.00/51,352.92
  6. Step 6: Final answer
    x = 41,576.51

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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.