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Finding the Fourth Proportional to 85,697.50, 128,467.52 and 29,524.25

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Solution

The fourth proportional to 85,697.50, 128,467.52 and 29,524.25 is: 44,259.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,697.50 : 128,467.52 = 29,524.25 : x
  2. Step 2: Convert to fraction form
    85,697.50/128,467.52 = 29,524.25/x
  3. Step 3: Cross multiply
    85,697.50x = 128,467.52 × 29,524.25
  4. Step 4: Simplify right side
    85,697.50x = 3,792,907,029.74
  5. Step 5: Solve for x
    x = 3,792,907,029.74/85,697.50
  6. Step 6: Final answer
    x = 44,259.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.