Home / 83,072.16-114,639.63-51,259.51

Finding the Fourth Proportional to 83,072.16, 114,639.63 and 51,259.51

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Solution

The fourth proportional to 83,072.16, 114,639.63 and 51,259.51 is: 70,738.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,072.16 : 114,639.63 = 51,259.51 : x
  2. Step 2: Convert to fraction form
    83,072.16/114,639.63 = 51,259.51/x
  3. Step 3: Cross multiply
    83,072.16x = 114,639.63 × 51,259.51
  4. Step 4: Simplify right side
    83,072.16x = 5,876,370,973.78
  5. Step 5: Solve for x
    x = 5,876,370,973.78/83,072.16
  6. Step 6: Final answer
    x = 70,738.15

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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.