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Finding the Fourth Proportional to 72,668.71, 100,281.39 and 44,374.39

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Solution

The fourth proportional to 72,668.71, 100,281.39 and 44,374.39 is: 61,235.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,668.71 : 100,281.39 = 44,374.39 : x
  2. Step 2: Convert to fraction form
    72,668.71/100,281.39 = 44,374.39/x
  3. Step 3: Cross multiply
    72,668.71x = 100,281.39 × 44,374.39
  4. Step 4: Simplify right side
    72,668.71x = 4,449,925,509.60
  5. Step 5: Solve for x
    x = 4,449,925,509.60/72,668.71
  6. Step 6: Final answer
    x = 61,235.79

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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.