Home / 45,408.02-68,086.08-13,808.75

Finding the Fourth Proportional to 45,408.02, 68,086.08 and 13,808.75

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Solution

The fourth proportional to 45,408.02, 68,086.08 and 13,808.75 is: 20,705.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,408.02 : 68,086.08 = 13,808.75 : x
  2. Step 2: Convert to fraction form
    45,408.02/68,086.08 = 13,808.75/x
  3. Step 3: Cross multiply
    45,408.02x = 68,086.08 × 13,808.75
  4. Step 4: Simplify right side
    45,408.02x = 940,183,316.77
  5. Step 5: Solve for x
    x = 940,183,316.77/45,408.02
  6. Step 6: Final answer
    x = 20,705.23

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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.