Home / 86,048.58-118,734.20-48,315.54

Finding the Fourth Proportional to 86,048.58, 118,734.20 and 48,315.54

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Solution

The fourth proportional to 86,048.58, 118,734.20 and 48,315.54 is: 66,668.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,048.58 : 118,734.20 = 48,315.54 : x
  2. Step 2: Convert to fraction form
    86,048.58/118,734.20 = 48,315.54/x
  3. Step 3: Cross multiply
    86,048.58x = 118,734.20 × 48,315.54
  4. Step 4: Simplify right side
    86,048.58x = 5,736,706,989.47
  5. Step 5: Solve for x
    x = 5,736,706,989.47/86,048.58
  6. Step 6: Final answer
    x = 66,668.24

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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.