Home / 55,129.36-76,121.37-42,362.41

Finding the Fourth Proportional to 55,129.36, 76,121.37 and 42,362.41

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Solution

The fourth proportional to 55,129.36, 76,121.37 and 42,362.41 is: 58,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.36 : 76,121.37 = 42,362.41 : x
  2. Step 2: Convert to fraction form
    55,129.36/76,121.37 = 42,362.41/x
  3. Step 3: Cross multiply
    55,129.36x = 76,121.37 × 42,362.41
  4. Step 4: Simplify right side
    55,129.36x = 3,224,684,685.70
  5. Step 5: Solve for x
    x = 3,224,684,685.70/55,129.36
  6. Step 6: Final answer
    x = 58,493.05

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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.