Home / 47,899.94-71,849.90-12,840.50

Finding the Fourth Proportional to 47,899.94, 71,849.90 and 12,840.50

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Solution

The fourth proportional to 47,899.94, 71,849.90 and 12,840.50 is: 19,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,899.94 : 71,849.90 = 12,840.50 : x
  2. Step 2: Convert to fraction form
    47,899.94/71,849.90 = 12,840.50/x
  3. Step 3: Cross multiply
    47,899.94x = 71,849.90 × 12,840.50
  4. Step 4: Simplify right side
    47,899.94x = 922,588,852.68
  5. Step 5: Solve for x
    x = 922,588,852.68/47,899.94
  6. Step 6: Final answer
    x = 19,260.75

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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.