Home / 70,664.81-106,000.85-18,074.75

Finding the Fourth Proportional to 70,664.81, 106,000.85 and 18,074.75

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Solution

The fourth proportional to 70,664.81, 106,000.85 and 18,074.75 is: 27,113.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,664.81 : 106,000.85 = 18,074.75 : x
  2. Step 2: Convert to fraction form
    70,664.81/106,000.85 = 18,074.75/x
  3. Step 3: Cross multiply
    70,664.81x = 106,000.85 × 18,074.75
  4. Step 4: Simplify right side
    70,664.81x = 1,915,938,378.72
  5. Step 5: Solve for x
    x = 1,915,938,378.72/70,664.81
  6. Step 6: Final answer
    x = 27,113.05

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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.