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Finding the Fourth Proportional to 76,863.25, 106,071.29 and 43,329.25

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Solution

The fourth proportional to 76,863.25, 106,071.29 and 43,329.25 is: 59,794.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,863.25 : 106,071.29 = 43,329.25 : x
  2. Step 2: Convert to fraction form
    76,863.25/106,071.29 = 43,329.25/x
  3. Step 3: Cross multiply
    76,863.25x = 106,071.29 × 43,329.25
  4. Step 4: Simplify right side
    76,863.25x = 4,595,989,442.23
  5. Step 5: Solve for x
    x = 4,595,989,442.23/76,863.25
  6. Step 6: Final answer
    x = 59,794.37

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1.5x scale

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.