Home / 81,647.16-122,356.70-44,126.36

Finding the Fourth Proportional to 81,647.16, 122,356.70 and 44,126.36

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Solution

The fourth proportional to 81,647.16, 122,356.70 and 44,126.36 is: 66,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,647.16 : 122,356.70 = 44,126.36 : x
  2. Step 2: Convert to fraction form
    81,647.16/122,356.70 = 44,126.36/x
  3. Step 3: Cross multiply
    81,647.16x = 122,356.70 × 44,126.36
  4. Step 4: Simplify right side
    81,647.16x = 5,399,155,792.61
  5. Step 5: Solve for x
    x = 5,399,155,792.61/81,647.16
  6. Step 6: Final answer
    x = 66,127.91

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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.