Home / 86,137.65-118,860.44-51,680.56

Finding the Fourth Proportional to 86,137.65, 118,860.44 and 51,680.56

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Solution

The fourth proportional to 86,137.65, 118,860.44 and 51,680.56 is: 71,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,137.65 : 118,860.44 = 51,680.56 : x
  2. Step 2: Convert to fraction form
    86,137.65/118,860.44 = 51,680.56/x
  3. Step 3: Cross multiply
    86,137.65x = 118,860.44 × 51,680.56
  4. Step 4: Simplify right side
    86,137.65x = 6,142,773,933.10
  5. Step 5: Solve for x
    x = 6,142,773,933.10/86,137.65
  6. Step 6: Final answer
    x = 71,313.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.