Home / 66,512.84-91,821.58-51,371.51

Finding the Fourth Proportional to 66,512.84, 91,821.58 and 51,371.51

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Solution

The fourth proportional to 66,512.84, 91,821.58 and 51,371.51 is: 70,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,512.84 : 91,821.58 = 51,371.51 : x
  2. Step 2: Convert to fraction form
    66,512.84/91,821.58 = 51,371.51/x
  3. Step 3: Cross multiply
    66,512.84x = 91,821.58 × 51,371.51
  4. Step 4: Simplify right side
    66,512.84x = 4,717,013,215.19
  5. Step 5: Solve for x
    x = 4,717,013,215.19/66,512.84
  6. Step 6: Final answer
    x = 70,918.84

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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.