Home / 75,042.93-112,508.51-45,453.63

Finding the Fourth Proportional to 75,042.93, 112,508.51 and 45,453.63

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Solution

The fourth proportional to 75,042.93, 112,508.51 and 45,453.63 is: 68,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,042.93 : 112,508.51 = 45,453.63 : x
  2. Step 2: Convert to fraction form
    75,042.93/112,508.51 = 45,453.63/x
  3. Step 3: Cross multiply
    75,042.93x = 112,508.51 × 45,453.63
  4. Step 4: Simplify right side
    75,042.93x = 5,113,919,958.12
  5. Step 5: Solve for x
    x = 5,113,919,958.12/75,042.93
  6. Step 6: Final answer
    x = 68,146.59

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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.