Home / 89,721.18-134,602.62-30,557.36

Finding the Fourth Proportional to 89,721.18, 134,602.62 and 30,557.36

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Solution

The fourth proportional to 89,721.18, 134,602.62 and 30,557.36 is: 45,843.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,721.18 : 134,602.62 = 30,557.36 : x
  2. Step 2: Convert to fraction form
    89,721.18/134,602.62 = 30,557.36/x
  3. Step 3: Cross multiply
    89,721.18x = 134,602.62 × 30,557.36
  4. Step 4: Simplify right side
    89,721.18x = 4,113,100,716.28
  5. Step 5: Solve for x
    x = 4,113,100,716.28/89,721.18
  6. Step 6: Final answer
    x = 45,843.14

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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.