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Finding the Fourth Proportional to 75,102.34, 103,653.93 and 43,289.73

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Solution

The fourth proportional to 75,102.34, 103,653.93 and 43,289.73 is: 59,747.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,102.34 : 103,653.93 = 43,289.73 : x
  2. Step 2: Convert to fraction form
    75,102.34/103,653.93 = 43,289.73/x
  3. Step 3: Cross multiply
    75,102.34x = 103,653.93 × 43,289.73
  4. Step 4: Simplify right side
    75,102.34x = 4,487,150,643.14
  5. Step 5: Solve for x
    x = 4,487,150,643.14/75,102.34
  6. Step 6: Final answer
    x = 59,747.15

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1.5x scale

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.