Home / 49,987.26-68,989.93-28,762.43

Finding the Fourth Proportional to 49,987.26, 68,989.93 and 28,762.43

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Solution

The fourth proportional to 49,987.26, 68,989.93 and 28,762.43 is: 39,696.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,987.26 : 68,989.93 = 28,762.43 : x
  2. Step 2: Convert to fraction form
    49,987.26/68,989.93 = 28,762.43/x
  3. Step 3: Cross multiply
    49,987.26x = 68,989.93 × 28,762.43
  4. Step 4: Simplify right side
    49,987.26x = 1,984,317,615.47
  5. Step 5: Solve for x
    x = 1,984,317,615.47/49,987.26
  6. Step 6: Final answer
    x = 39,696.47

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1.5x scale

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.