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Finding the Fourth Proportional to 70,654.92, 105,903.45 and 30,627.71

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Solution

The fourth proportional to 70,654.92, 105,903.45 and 30,627.71 is: 45,907.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,654.92 : 105,903.45 = 30,627.71 : x
  2. Step 2: Convert to fraction form
    70,654.92/105,903.45 = 30,627.71/x
  3. Step 3: Cross multiply
    70,654.92x = 105,903.45 × 30,627.71
  4. Step 4: Simplify right side
    70,654.92x = 3,243,579,625.08
  5. Step 5: Solve for x
    x = 3,243,579,625.08/70,654.92
  6. Step 6: Final answer
    x = 45,907.34

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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.