Home / 70,945.20-106,422.66-18,360

Finding the Fourth Proportional to 70,945.20, 106,422.66 and 18,360

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Solution

The fourth proportional to 70,945.20, 106,422.66 and 18,360 is: 27,541.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,945.20 : 106,422.66 = 18,360 : x
  2. Step 2: Convert to fraction form
    70,945.20/106,422.66 = 18,360/x
  3. Step 3: Cross multiply
    70,945.20x = 106,422.66 × 18,360
  4. Step 4: Simplify right side
    70,945.20x = 1,953,920,037.60
  5. Step 5: Solve for x
    x = 1,953,920,037.60/70,945.20
  6. Step 6: Final answer
    x = 27,541.26

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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.