Home / 68,178.96-94,056.60-39,872.16

Finding the Fourth Proportional to 68,178.96, 94,056.60 and 39,872.16

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Solution

The fourth proportional to 68,178.96, 94,056.60 and 39,872.16 is: 55,005.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,178.96 : 94,056.60 = 39,872.16 : x
  2. Step 2: Convert to fraction form
    68,178.96/94,056.60 = 39,872.16/x
  3. Step 3: Cross multiply
    68,178.96x = 94,056.60 × 39,872.16
  4. Step 4: Simplify right side
    68,178.96x = 3,750,239,804.26
  5. Step 5: Solve for x
    x = 3,750,239,804.26/68,178.96
  6. Step 6: Final answer
    x = 55,005.82

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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.