Home / 74,191.05-102,383.50-40,200.45

Finding the Fourth Proportional to 74,191.05, 102,383.50 and 40,200.45

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Solution

The fourth proportional to 74,191.05, 102,383.50 and 40,200.45 is: 55,476.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,191.05 : 102,383.50 = 40,200.45 : x
  2. Step 2: Convert to fraction form
    74,191.05/102,383.50 = 40,200.45/x
  3. Step 3: Cross multiply
    74,191.05x = 102,383.50 × 40,200.45
  4. Step 4: Simplify right side
    74,191.05x = 4,115,862,772.58
  5. Step 5: Solve for x
    x = 4,115,862,772.58/74,191.05
  6. Step 6: Final answer
    x = 55,476.54

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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.