Home / 81,971.64-113,119.70-46,165.16

Finding the Fourth Proportional to 81,971.64, 113,119.70 and 46,165.16

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Solution

The fourth proportional to 81,971.64, 113,119.70 and 46,165.16 is: 63,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,971.64 : 113,119.70 = 46,165.16 : x
  2. Step 2: Convert to fraction form
    81,971.64/113,119.70 = 46,165.16/x
  3. Step 3: Cross multiply
    81,971.64x = 113,119.70 × 46,165.16
  4. Step 4: Simplify right side
    81,971.64x = 5,222,189,049.65
  5. Step 5: Solve for x
    x = 5,222,189,049.65/81,971.64
  6. Step 6: Final answer
    x = 63,707.27

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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.