Home / 85,803.22-118,415.01-53,999.38

Finding the Fourth Proportional to 85,803.22, 118,415.01 and 53,999.38

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Solution

The fourth proportional to 85,803.22, 118,415.01 and 53,999.38 is: 74,523.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,803.22 : 118,415.01 = 53,999.38 : x
  2. Step 2: Convert to fraction form
    85,803.22/118,415.01 = 53,999.38/x
  3. Step 3: Cross multiply
    85,803.22x = 118,415.01 × 53,999.38
  4. Step 4: Simplify right side
    85,803.22x = 6,394,337,122.69
  5. Step 5: Solve for x
    x = 6,394,337,122.69/85,803.22
  6. Step 6: Final answer
    x = 74,523.28

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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.