Home / 74,334.56-102,580.74-40,343.13

Finding the Fourth Proportional to 74,334.56, 102,580.74 and 40,343.13

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Solution

The fourth proportional to 74,334.56, 102,580.74 and 40,343.13 is: 55,673.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,334.56 : 102,580.74 = 40,343.13 : x
  2. Step 2: Convert to fraction form
    74,334.56/102,580.74 = 40,343.13/x
  3. Step 3: Cross multiply
    74,334.56x = 102,580.74 × 40,343.13
  4. Step 4: Simplify right side
    74,334.56x = 4,138,428,129.32
  5. Step 5: Solve for x
    x = 4,138,428,129.32/74,334.56
  6. Step 6: Final answer
    x = 55,673.01

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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.