Home / 74,282.54-102,509.03-40,290.41

Finding the Fourth Proportional to 74,282.54, 102,509.03 and 40,290.41

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Solution

The fourth proportional to 74,282.54, 102,509.03 and 40,290.41 is: 55,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,282.54 : 102,509.03 = 40,290.41 : x
  2. Step 2: Convert to fraction form
    74,282.54/102,509.03 = 40,290.41/x
  3. Step 3: Cross multiply
    74,282.54x = 102,509.03 × 40,290.41
  4. Step 4: Simplify right side
    74,282.54x = 4,130,131,204.40
  5. Step 5: Solve for x
    x = 4,130,131,204.40/74,282.54
  6. Step 6: Final answer
    x = 55,600.30

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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.