Home / 45,806.89-68,716.86-14,219.68

Finding the Fourth Proportional to 45,806.89, 68,716.86 and 14,219.68

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Solution

The fourth proportional to 45,806.89, 68,716.86 and 14,219.68 is: 21,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,806.89 : 68,716.86 = 14,219.68 : x
  2. Step 2: Convert to fraction form
    45,806.89/68,716.86 = 14,219.68/x
  3. Step 3: Cross multiply
    45,806.89x = 68,716.86 × 14,219.68
  4. Step 4: Simplify right side
    45,806.89x = 977,131,345.12
  5. Step 5: Solve for x
    x = 977,131,345.12/45,806.89
  6. Step 6: Final answer
    x = 21,331.54

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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.