Home / 82,721.40-114,146.64-48,727.23

Finding the Fourth Proportional to 82,721.40, 114,146.64 and 48,727.23

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Solution

The fourth proportional to 82,721.40, 114,146.64 and 48,727.23 is: 67,238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,721.40 : 114,146.64 = 48,727.23 : x
  2. Step 2: Convert to fraction form
    82,721.40/114,146.64 = 48,727.23/x
  3. Step 3: Cross multiply
    82,721.40x = 114,146.64 × 48,727.23
  4. Step 4: Simplify right side
    82,721.40x = 5,562,049,581.01
  5. Step 5: Solve for x
    x = 5,562,049,581.01/82,721.40
  6. Step 6: Final answer
    x = 67,238.34

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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.