Home / 81,739.62-122,412.60-46,572.66

Finding the Fourth Proportional to 81,739.62, 122,412.60 and 46,572.66

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Solution

The fourth proportional to 81,739.62, 122,412.60 and 46,572.66 is: 69,746.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,739.62 : 122,412.60 = 46,572.66 : x
  2. Step 2: Convert to fraction form
    81,739.62/122,412.60 = 46,572.66/x
  3. Step 3: Cross multiply
    81,739.62x = 122,412.60 × 46,572.66
  4. Step 4: Simplify right side
    81,739.62x = 5,701,080,399.52
  5. Step 5: Solve for x
    x = 5,701,080,399.52/81,739.62
  6. Step 6: Final answer
    x = 69,746.84

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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.