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Finding the Fourth Proportional to 79,298.60, 118,946.25 and 19,327.41

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Solution

The fourth proportional to 79,298.60, 118,946.25 and 19,327.41 is: 28,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,298.60 : 118,946.25 = 19,327.41 : x
  2. Step 2: Convert to fraction form
    79,298.60/118,946.25 = 19,327.41/x
  3. Step 3: Cross multiply
    79,298.60x = 118,946.25 × 19,327.41
  4. Step 4: Simplify right side
    79,298.60x = 2,298,922,941.71
  5. Step 5: Solve for x
    x = 2,298,922,941.71/79,298.60
  6. Step 6: Final answer
    x = 28,990.71

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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.