Home / 45,100.18-67,650.73-20,141.50

Finding the Fourth Proportional to 45,100.18, 67,650.73 and 20,141.50

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Solution

The fourth proportional to 45,100.18, 67,650.73 and 20,141.50 is: 30,212.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,100.18 : 67,650.73 = 20,141.50 : x
  2. Step 2: Convert to fraction form
    45,100.18/67,650.73 = 20,141.50/x
  3. Step 3: Cross multiply
    45,100.18x = 67,650.73 × 20,141.50
  4. Step 4: Simplify right side
    45,100.18x = 1,362,587,178.30
  5. Step 5: Solve for x
    x = 1,362,587,178.30/45,100.18
  6. Step 6: Final answer
    x = 30,212.46

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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.