Home / 82,122.37-113,393.01-64,268.26

Finding the Fourth Proportional to 82,122.37, 113,393.01 and 64,268.26

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Solution

The fourth proportional to 82,122.37, 113,393.01 and 64,268.26 is: 88,740.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,122.37 : 113,393.01 = 64,268.26 : x
  2. Step 2: Convert to fraction form
    82,122.37/113,393.01 = 64,268.26/x
  3. Step 3: Cross multiply
    82,122.37x = 113,393.01 × 64,268.26
  4. Step 4: Simplify right side
    82,122.37x = 7,287,571,448.86
  5. Step 5: Solve for x
    x = 7,287,571,448.86/82,122.37
  6. Step 6: Final answer
    x = 88,740.39

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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.