Home / 82,121.37-113,391.63-64,267.26

Finding the Fourth Proportional to 82,121.37, 113,391.63 and 64,267.26

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Solution

The fourth proportional to 82,121.37, 113,391.63 and 64,267.26 is: 88,739.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,121.37 : 113,391.63 = 64,267.26 : x
  2. Step 2: Convert to fraction form
    82,121.37/113,391.63 = 64,267.26/x
  3. Step 3: Cross multiply
    82,121.37x = 113,391.63 × 64,267.26
  4. Step 4: Simplify right side
    82,121.37x = 7,287,369,367.03
  5. Step 5: Solve for x
    x = 7,287,369,367.03/82,121.37
  6. Step 6: Final answer
    x = 88,739.01

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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.