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Finding the Fourth Proportional to 61,907, 85,429.36 and 33,612.08

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Solution

The fourth proportional to 61,907, 85,429.36 and 33,612.08 is: 46,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,907 : 85,429.36 = 33,612.08 : x
  2. Step 2: Convert to fraction form
    61,907/85,429.36 = 33,612.08/x
  3. Step 3: Cross multiply
    61,907x = 85,429.36 × 33,612.08
  4. Step 4: Simplify right side
    61,907x = 2,871,458,482.67
  5. Step 5: Solve for x
    x = 2,871,458,482.67/61,907
  6. Step 6: Final answer
    x = 46,383.42

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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.