Home / 81,045.14-111,842.44-45,235.14

Finding the Fourth Proportional to 81,045.14, 111,842.44 and 45,235.14

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Solution

The fourth proportional to 81,045.14, 111,842.44 and 45,235.14 is: 62,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,045.14 : 111,842.44 = 45,235.14 : x
  2. Step 2: Convert to fraction form
    81,045.14/111,842.44 = 45,235.14/x
  3. Step 3: Cross multiply
    81,045.14x = 111,842.44 × 45,235.14
  4. Step 4: Simplify right side
    81,045.14x = 5,059,208,431.34
  5. Step 5: Solve for x
    x = 5,059,208,431.34/81,045.14
  6. Step 6: Final answer
    x = 62,424.58

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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.