Home / 81,083.84-111,897.60-45,272.64

Finding the Fourth Proportional to 81,083.84, 111,897.60 and 45,272.64

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Solution

The fourth proportional to 81,083.84, 111,897.60 and 45,272.64 is: 62,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,083.84 : 111,897.60 = 45,272.64 : x
  2. Step 2: Convert to fraction form
    81,083.84/111,897.60 = 45,272.64/x
  3. Step 3: Cross multiply
    81,083.84x = 111,897.60 × 45,272.64
  4. Step 4: Simplify right side
    81,083.84x = 5,065,899,761.66
  5. Step 5: Solve for x
    x = 5,065,899,761.66/81,083.84
  6. Step 6: Final answer
    x = 62,477.30

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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.