Home / 70,382.03-97,128.79-40,166.75

Finding the Fourth Proportional to 70,382.03, 97,128.79 and 40,166.75

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Solution

The fourth proportional to 70,382.03, 97,128.79 and 40,166.75 is: 55,431.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,382.03 : 97,128.79 = 40,166.75 : x
  2. Step 2: Convert to fraction form
    70,382.03/97,128.79 = 40,166.75/x
  3. Step 3: Cross multiply
    70,382.03x = 97,128.79 × 40,166.75
  4. Step 4: Simplify right side
    70,382.03x = 3,901,347,968.14
  5. Step 5: Solve for x
    x = 3,901,347,968.14/70,382.03
  6. Step 6: Final answer
    x = 55,431.02

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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.