Home / 45,885.13-68,814.47-12,606.28

Finding the Fourth Proportional to 45,885.13, 68,814.47 and 12,606.28

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Solution

The fourth proportional to 45,885.13, 68,814.47 and 12,606.28 is: 18,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,885.13 : 68,814.47 = 12,606.28 : x
  2. Step 2: Convert to fraction form
    45,885.13/68,814.47 = 12,606.28/x
  3. Step 3: Cross multiply
    45,885.13x = 68,814.47 × 12,606.28
  4. Step 4: Simplify right side
    45,885.13x = 867,494,413.84
  5. Step 5: Solve for x
    x = 867,494,413.84/45,885.13
  6. Step 6: Final answer
    x = 18,905.79

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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.