Home / 50,987.68-70,388.58-31,878.07

Finding the Fourth Proportional to 50,987.68, 70,388.58 and 31,878.07

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Solution

The fourth proportional to 50,987.68, 70,388.58 and 31,878.07 is: 44,007.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,987.68 : 70,388.58 = 31,878.07 : x
  2. Step 2: Convert to fraction form
    50,987.68/70,388.58 = 31,878.07/x
  3. Step 3: Cross multiply
    50,987.68x = 70,388.58 × 31,878.07
  4. Step 4: Simplify right side
    50,987.68x = 2,243,852,080.44
  5. Step 5: Solve for x
    x = 2,243,852,080.44/50,987.68
  6. Step 6: Final answer
    x = 44,007.73

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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.