Home / 85,725.10-118,301.70-47,999.44

Finding the Fourth Proportional to 85,725.10, 118,301.70 and 47,999.44

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Solution

The fourth proportional to 85,725.10, 118,301.70 and 47,999.44 is: 66,239.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,725.10 : 118,301.70 = 47,999.44 : x
  2. Step 2: Convert to fraction form
    85,725.10/118,301.70 = 47,999.44/x
  3. Step 3: Cross multiply
    85,725.10x = 118,301.70 × 47,999.44
  4. Step 4: Simplify right side
    85,725.10x = 5,678,415,351.05
  5. Step 5: Solve for x
    x = 5,678,415,351.05/85,725.10
  6. Step 6: Final answer
    x = 66,239.82

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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.