Home / 77,406.26-106,821.86-43,422.30

Finding the Fourth Proportional to 77,406.26, 106,821.86 and 43,422.30

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Solution

The fourth proportional to 77,406.26, 106,821.86 and 43,422.30 is: 59,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,406.26 : 106,821.86 = 43,422.30 : x
  2. Step 2: Convert to fraction form
    77,406.26/106,821.86 = 43,422.30/x
  3. Step 3: Cross multiply
    77,406.26x = 106,821.86 × 43,422.30
  4. Step 4: Simplify right side
    77,406.26x = 4,638,450,851.48
  5. Step 5: Solve for x
    x = 4,638,450,851.48/77,406.26
  6. Step 6: Final answer
    x = 59,923.46

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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.