Home / 66,643.39-91,969.19-36,427.87

Finding the Fourth Proportional to 66,643.39, 91,969.19 and 36,427.87

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Solution

The fourth proportional to 66,643.39, 91,969.19 and 36,427.87 is: 50,271.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,643.39 : 91,969.19 = 36,427.87 : x
  2. Step 2: Convert to fraction form
    66,643.39/91,969.19 = 36,427.87/x
  3. Step 3: Cross multiply
    66,643.39x = 91,969.19 × 36,427.87
  4. Step 4: Simplify right side
    66,643.39x = 3,350,241,697.33
  5. Step 5: Solve for x
    x = 3,350,241,697.33/66,643.39
  6. Step 6: Final answer
    x = 50,271.18

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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.