Home / 80,973.42-121,456.64-27,670.16

Finding the Fourth Proportional to 80,973.42, 121,456.64 and 27,670.16

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Solution

The fourth proportional to 80,973.42, 121,456.64 and 27,670.16 is: 41,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,973.42 : 121,456.64 = 27,670.16 : x
  2. Step 2: Convert to fraction form
    80,973.42/121,456.64 = 27,670.16/x
  3. Step 3: Cross multiply
    80,973.42x = 121,456.64 × 27,670.16
  4. Step 4: Simplify right side
    80,973.42x = 3,360,724,661.86
  5. Step 5: Solve for x
    x = 3,360,724,661.86/80,973.42
  6. Step 6: Final answer
    x = 41,504.05

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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.