Home / 89,911.04-134,800-43,119.36

Finding the Fourth Proportional to 89,911.04, 134,800 and 43,119.36

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Solution

The fourth proportional to 89,911.04, 134,800 and 43,119.36 is: 64,647.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,911.04 : 134,800 = 43,119.36 : x
  2. Step 2: Convert to fraction form
    89,911.04/134,800 = 43,119.36/x
  3. Step 3: Cross multiply
    89,911.04x = 134,800 × 43,119.36
  4. Step 4: Simplify right side
    89,911.04x = 5,812,489,728
  5. Step 5: Solve for x
    x = 5,812,489,728/89,911.04
  6. Step 6: Final answer
    x = 64,647.12

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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.