Home / 43,429.06-65,172.75-20,055.70

Finding the Fourth Proportional to 43,429.06, 65,172.75 and 20,055.70

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Solution

The fourth proportional to 43,429.06, 65,172.75 and 20,055.70 is: 30,097.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,429.06 : 65,172.75 = 20,055.70 : x
  2. Step 2: Convert to fraction form
    43,429.06/65,172.75 = 20,055.70/x
  3. Step 3: Cross multiply
    43,429.06x = 65,172.75 × 20,055.70
  4. Step 4: Simplify right side
    43,429.06x = 1,307,085,122.18
  5. Step 5: Solve for x
    x = 1,307,085,122.18/43,429.06
  6. Step 6: Final answer
    x = 30,097.02

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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.