Home / 74,295.95-111,443.54-18,136.36

Finding the Fourth Proportional to 74,295.95, 111,443.54 and 18,136.36

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Solution

The fourth proportional to 74,295.95, 111,443.54 and 18,136.36 is: 27,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,295.95 : 111,443.54 = 18,136.36 : x
  2. Step 2: Convert to fraction form
    74,295.95/111,443.54 = 18,136.36/x
  3. Step 3: Cross multiply
    74,295.95x = 111,443.54 × 18,136.36
  4. Step 4: Simplify right side
    74,295.95x = 2,021,180,161.11
  5. Step 5: Solve for x
    x = 2,021,180,161.11/74,295.95
  6. Step 6: Final answer
    x = 27,204.45

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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.