Home / 71,126.32-106,695.02-21,202.60

Finding the Fourth Proportional to 71,126.32, 106,695.02 and 21,202.60

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Solution

The fourth proportional to 71,126.32, 106,695.02 and 21,202.60 is: 31,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,126.32 : 106,695.02 = 21,202.60 : x
  2. Step 2: Convert to fraction form
    71,126.32/106,695.02 = 21,202.60/x
  3. Step 3: Cross multiply
    71,126.32x = 106,695.02 × 21,202.60
  4. Step 4: Simplify right side
    71,126.32x = 2,262,211,831.05
  5. Step 5: Solve for x
    x = 2,262,211,831.05/71,126.32
  6. Step 6: Final answer
    x = 31,805.55

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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.