Home / 75,428.39-113,142.58-19,268.62

Finding the Fourth Proportional to 75,428.39, 113,142.58 and 19,268.62

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Solution

The fourth proportional to 75,428.39, 113,142.58 and 19,268.62 is: 28,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,428.39 : 113,142.58 = 19,268.62 : x
  2. Step 2: Convert to fraction form
    75,428.39/113,142.58 = 19,268.62/x
  3. Step 3: Cross multiply
    75,428.39x = 113,142.58 × 19,268.62
  4. Step 4: Simplify right side
    75,428.39x = 2,180,101,661.61
  5. Step 5: Solve for x
    x = 2,180,101,661.61/75,428.39
  6. Step 6: Final answer
    x = 28,902.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.