Home / 74,509.47-102,823.05-40,975.47

Finding the Fourth Proportional to 74,509.47, 102,823.05 and 40,975.47

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Solution

The fourth proportional to 74,509.47, 102,823.05 and 40,975.47 is: 56,546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,509.47 : 102,823.05 = 40,975.47 : x
  2. Step 2: Convert to fraction form
    74,509.47/102,823.05 = 40,975.47/x
  3. Step 3: Cross multiply
    74,509.47x = 102,823.05 × 40,975.47
  4. Step 4: Simplify right side
    74,509.47x = 4,213,222,954.24
  5. Step 5: Solve for x
    x = 4,213,222,954.24/74,509.47
  6. Step 6: Final answer
    x = 56,546.14

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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.