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Finding the Fourth Proportional to 74,463.75, 111,695.63 and 19,059.75

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Solution

The fourth proportional to 74,463.75, 111,695.63 and 19,059.75 is: 28,589.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,463.75 : 111,695.63 = 19,059.75 : x
  2. Step 2: Convert to fraction form
    74,463.75/111,695.63 = 19,059.75/x
  3. Step 3: Cross multiply
    74,463.75x = 111,695.63 × 19,059.75
  4. Step 4: Simplify right side
    74,463.75x = 2,128,890,688.59
  5. Step 5: Solve for x
    x = 2,128,890,688.59/74,463.75
  6. Step 6: Final answer
    x = 28,589.63

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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.