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Finding the Fourth Proportional to 49,374.30, 74,059.79 and 19,784.19

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Solution

The fourth proportional to 49,374.30, 74,059.79 and 19,784.19 is: 29,675.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,374.30 : 74,059.79 = 19,784.19 : x
  2. Step 2: Convert to fraction form
    49,374.30/74,059.79 = 19,784.19/x
  3. Step 3: Cross multiply
    49,374.30x = 74,059.79 × 19,784.19
  4. Step 4: Simplify right side
    49,374.30x = 1,465,212,857.80
  5. Step 5: Solve for x
    x = 1,465,212,857.80/49,374.30
  6. Step 6: Final answer
    x = 29,675.62

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1.5x scale

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.