Home / 70,649.14-105,973.44-18,058.54

Finding the Fourth Proportional to 70,649.14, 105,973.44 and 18,058.54

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Solution

The fourth proportional to 70,649.14, 105,973.44 and 18,058.54 is: 27,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,649.14 : 105,973.44 = 18,058.54 : x
  2. Step 2: Convert to fraction form
    70,649.14/105,973.44 = 18,058.54/x
  3. Step 3: Cross multiply
    70,649.14x = 105,973.44 × 18,058.54
  4. Step 4: Simplify right side
    70,649.14x = 1,913,725,605.18
  5. Step 5: Solve for x
    x = 1,913,725,605.18/70,649.14
  6. Step 6: Final answer
    x = 27,087.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.