Home / 57,815.50-86,723.26-14,039.50

Finding the Fourth Proportional to 57,815.50, 86,723.26 and 14,039.50

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Solution

The fourth proportional to 57,815.50, 86,723.26 and 14,039.50 is: 21,059.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,815.50 : 86,723.26 = 14,039.50 : x
  2. Step 2: Convert to fraction form
    57,815.50/86,723.26 = 14,039.50/x
  3. Step 3: Cross multiply
    57,815.50x = 86,723.26 × 14,039.50
  4. Step 4: Simplify right side
    57,815.50x = 1,217,551,208.77
  5. Step 5: Solve for x
    x = 1,217,551,208.77/57,815.50
  6. Step 6: Final answer
    x = 21,059.25

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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.