Home / 71,845.47-107,742.27-30,295.71

Finding the Fourth Proportional to 71,845.47, 107,742.27 and 30,295.71

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Solution

The fourth proportional to 71,845.47, 107,742.27 and 30,295.71 is: 45,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,845.47 : 107,742.27 = 30,295.71 : x
  2. Step 2: Convert to fraction form
    71,845.47/107,742.27 = 30,295.71/x
  3. Step 3: Cross multiply
    71,845.47x = 107,742.27 × 30,295.71
  4. Step 4: Simplify right side
    71,845.47x = 3,264,128,566.66
  5. Step 5: Solve for x
    x = 3,264,128,566.66/71,845.47
  6. Step 6: Final answer
    x = 45,432.63

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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.