Home / 40,695.81-61,059.78-12,618.07

Finding the Fourth Proportional to 40,695.81, 61,059.78 and 12,618.07

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Solution

The fourth proportional to 40,695.81, 61,059.78 and 12,618.07 is: 18,932.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,695.81 : 61,059.78 = 12,618.07 : x
  2. Step 2: Convert to fraction form
    40,695.81/61,059.78 = 12,618.07/x
  3. Step 3: Cross multiply
    40,695.81x = 61,059.78 × 12,618.07
  4. Step 4: Simplify right side
    40,695.81x = 770,456,425.58
  5. Step 5: Solve for x
    x = 770,456,425.58/40,695.81
  6. Step 6: Final answer
    x = 18,932.08

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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.