Home / 97,839.63-135,019.22-55,406.43

Finding the Fourth Proportional to 97,839.63, 135,019.22 and 55,406.43

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Solution

The fourth proportional to 97,839.63, 135,019.22 and 55,406.43 is: 76,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,839.63 : 135,019.22 = 55,406.43 : x
  2. Step 2: Convert to fraction form
    97,839.63/135,019.22 = 55,406.43/x
  3. Step 3: Cross multiply
    97,839.63x = 135,019.22 × 55,406.43
  4. Step 4: Simplify right side
    97,839.63x = 7,480,932,684.55
  5. Step 5: Solve for x
    x = 7,480,932,684.55/97,839.63
  6. Step 6: Final answer
    x = 76,461.17

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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.