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Finding the Fourth Proportional to 76,636.08, 105,758.73 and 43,102.08

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Solution

The fourth proportional to 76,636.08, 105,758.73 and 43,102.08 is: 59,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,636.08 : 105,758.73 = 43,102.08 : x
  2. Step 2: Convert to fraction form
    76,636.08/105,758.73 = 43,102.08/x
  3. Step 3: Cross multiply
    76,636.08x = 105,758.73 × 43,102.08
  4. Step 4: Simplify right side
    76,636.08x = 4,558,421,241.16
  5. Step 5: Solve for x
    x = 4,558,421,241.16/76,636.08
  6. Step 6: Final answer
    x = 59,481.40

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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.