Home / 94,142.54-129,885.42-55,913.78

Finding the Fourth Proportional to 94,142.54, 129,885.42 and 55,913.78

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Solution

The fourth proportional to 94,142.54, 129,885.42 and 55,913.78 is: 77,142.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,142.54 : 129,885.42 = 55,913.78 : x
  2. Step 2: Convert to fraction form
    94,142.54/129,885.42 = 55,913.78/x
  3. Step 3: Cross multiply
    94,142.54x = 129,885.42 × 55,913.78
  4. Step 4: Simplify right side
    94,142.54x = 7,262,384,799.09
  5. Step 5: Solve for x
    x = 7,262,384,799.09/94,142.54
  6. Step 6: Final answer
    x = 77,142.44

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1.5x scale

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.