Home / 75,639.93-113,460.45-28,265.73

Finding the Fourth Proportional to 75,639.93, 113,460.45 and 28,265.73

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Solution

The fourth proportional to 75,639.93, 113,460.45 and 28,265.73 is: 42,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,639.93 : 113,460.45 = 28,265.73 : x
  2. Step 2: Convert to fraction form
    75,639.93/113,460.45 = 28,265.73/x
  3. Step 3: Cross multiply
    75,639.93x = 113,460.45 × 28,265.73
  4. Step 4: Simplify right side
    75,639.93x = 3,207,042,445.38
  5. Step 5: Solve for x
    x = 3,207,042,445.38/75,639.93
  6. Step 6: Final answer
    x = 42,398.80

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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.