Home / 77,726.12-107,261.70-43,736.36

Finding the Fourth Proportional to 77,726.12, 107,261.70 and 43,736.36

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Solution

The fourth proportional to 77,726.12, 107,261.70 and 43,736.36 is: 60,355.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,726.12 : 107,261.70 = 43,736.36 : x
  2. Step 2: Convert to fraction form
    77,726.12/107,261.70 = 43,736.36/x
  3. Step 3: Cross multiply
    77,726.12x = 107,261.70 × 43,736.36
  4. Step 4: Simplify right side
    77,726.12x = 4,691,236,325.41
  5. Step 5: Solve for x
    x = 4,691,236,325.41/77,726.12
  6. Step 6: Final answer
    x = 60,355.98

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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.