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Finding the Fourth Proportional to 79,084.31, 109,125.54 and 47,246.45

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Solution

The fourth proportional to 79,084.31, 109,125.54 and 47,246.45 is: 65,193.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,084.31 : 109,125.54 = 47,246.45 : x
  2. Step 2: Convert to fraction form
    79,084.31/109,125.54 = 47,246.45/x
  3. Step 3: Cross multiply
    79,084.31x = 109,125.54 × 47,246.45
  4. Step 4: Simplify right side
    79,084.31x = 5,155,793,823.71
  5. Step 5: Solve for x
    x = 5,155,793,823.71/79,084.31
  6. Step 6: Final answer
    x = 65,193.64

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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.