Home / 67,355.36-101,022.16-31,816.60

Finding the Fourth Proportional to 67,355.36, 101,022.16 and 31,816.60

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Solution

The fourth proportional to 67,355.36, 101,022.16 and 31,816.60 is: 47,719.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,355.36 : 101,022.16 = 31,816.60 : x
  2. Step 2: Convert to fraction form
    67,355.36/101,022.16 = 31,816.60/x
  3. Step 3: Cross multiply
    67,355.36x = 101,022.16 × 31,816.60
  4. Step 4: Simplify right side
    67,355.36x = 3,214,181,655.86
  5. Step 5: Solve for x
    x = 3,214,181,655.86/67,355.36
  6. Step 6: Final answer
    x = 47,719.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.