Home / 45,100.02-67,642.11-13,935.54

Finding the Fourth Proportional to 45,100.02, 67,642.11 and 13,935.54

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Solution

The fourth proportional to 45,100.02, 67,642.11 and 13,935.54 is: 20,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,100.02 : 67,642.11 = 13,935.54 : x
  2. Step 2: Convert to fraction form
    45,100.02/67,642.11 = 13,935.54/x
  3. Step 3: Cross multiply
    45,100.02x = 67,642.11 × 13,935.54
  4. Step 4: Simplify right side
    45,100.02x = 942,629,329.59
  5. Step 5: Solve for x
    x = 942,629,329.59/45,100.02
  6. Step 6: Final answer
    x = 20,900.86

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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.