Home / 70,761.81-106,139.25-26,385.10

Finding the Fourth Proportional to 70,761.81, 106,139.25 and 26,385.10

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Solution

The fourth proportional to 70,761.81, 106,139.25 and 26,385.10 is: 39,576.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,761.81 : 106,139.25 = 26,385.10 : x
  2. Step 2: Convert to fraction form
    70,761.81/106,139.25 = 26,385.10/x
  3. Step 3: Cross multiply
    70,761.81x = 106,139.25 × 26,385.10
  4. Step 4: Simplify right side
    70,761.81x = 2,800,494,327.90
  5. Step 5: Solve for x
    x = 2,800,494,327.90/70,761.81
  6. Step 6: Final answer
    x = 39,576.36

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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.