Home / 88,143.12-121,553.64-57,954

Finding the Fourth Proportional to 88,143.12, 121,553.64 and 57,954

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Solution

The fourth proportional to 88,143.12, 121,553.64 and 57,954 is: 79,921.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,143.12 : 121,553.64 = 57,954 : x
  2. Step 2: Convert to fraction form
    88,143.12/121,553.64 = 57,954/x
  3. Step 3: Cross multiply
    88,143.12x = 121,553.64 × 57,954
  4. Step 4: Simplify right side
    88,143.12x = 7,044,519,652.56
  5. Step 5: Solve for x
    x = 7,044,519,652.56/88,143.12
  6. Step 6: Final answer
    x = 79,921.38

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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.