Home / 50,987.74-70,374.32-28,334.50

Finding the Fourth Proportional to 50,987.74, 70,374.32 and 28,334.50

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Solution

The fourth proportional to 50,987.74, 70,374.32 and 28,334.50 is: 39,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,987.74 : 70,374.32 = 28,334.50 : x
  2. Step 2: Convert to fraction form
    50,987.74/70,374.32 = 28,334.50/x
  3. Step 3: Cross multiply
    50,987.74x = 70,374.32 × 28,334.50
  4. Step 4: Simplify right side
    50,987.74x = 1,994,021,170.04
  5. Step 5: Solve for x
    x = 1,994,021,170.04/50,987.74
  6. Step 6: Final answer
    x = 39,107.86

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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.