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Finding the Fourth Proportional to 70,554.78, 105,812.73 and 50,667.66

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Solution

The fourth proportional to 70,554.78, 105,812.73 and 50,667.66 is: 75,987.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,554.78 : 105,812.73 = 50,667.66 : x
  2. Step 2: Convert to fraction form
    70,554.78/105,812.73 = 50,667.66/x
  3. Step 3: Cross multiply
    70,554.78x = 105,812.73 × 50,667.66
  4. Step 4: Simplify right side
    70,554.78x = 5,361,283,427.31
  5. Step 5: Solve for x
    x = 5,361,283,427.31/70,554.78
  6. Step 6: Final answer
    x = 75,987.53

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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.