Home / 65,172.13-89,981.09-43,943.65

Finding the Fourth Proportional to 65,172.13, 89,981.09 and 43,943.65

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Solution

The fourth proportional to 65,172.13, 89,981.09 and 43,943.65 is: 60,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,172.13 : 89,981.09 = 43,943.65 : x
  2. Step 2: Convert to fraction form
    65,172.13/89,981.09 = 43,943.65/x
  3. Step 3: Cross multiply
    65,172.13x = 89,981.09 × 43,943.65
  4. Step 4: Simplify right side
    65,172.13x = 3,954,097,525.58
  5. Step 5: Solve for x
    x = 3,954,097,525.58/65,172.13
  6. Step 6: Final answer
    x = 60,671.60

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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.