Home / 83,649.74-115,419.60-47,851.79

Finding the Fourth Proportional to 83,649.74, 115,419.60 and 47,851.79

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Solution

The fourth proportional to 83,649.74, 115,419.60 and 47,851.79 is: 66,025.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,649.74 : 115,419.60 = 47,851.79 : x
  2. Step 2: Convert to fraction form
    83,649.74/115,419.60 = 47,851.79/x
  3. Step 3: Cross multiply
    83,649.74x = 115,419.60 × 47,851.79
  4. Step 4: Simplify right side
    83,649.74x = 5,523,033,883.99
  5. Step 5: Solve for x
    x = 5,523,033,883.99/83,649.74
  6. Step 6: Final answer
    x = 66,025.72

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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.