Home / 85,723.70-118,297.41-47,999.30

Finding the Fourth Proportional to 85,723.70, 118,297.41 and 47,999.30

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Solution

The fourth proportional to 85,723.70, 118,297.41 and 47,999.30 is: 66,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,723.70 : 118,297.41 = 47,999.30 : x
  2. Step 2: Convert to fraction form
    85,723.70/118,297.41 = 47,999.30/x
  3. Step 3: Cross multiply
    85,723.70x = 118,297.41 × 47,999.30
  4. Step 4: Simplify right side
    85,723.70x = 5,678,192,871.81
  5. Step 5: Solve for x
    x = 5,678,192,871.81/85,723.70
  6. Step 6: Final answer
    x = 66,238.31

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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.