Home / 74,258.12-102,476.34-40,724.36

Finding the Fourth Proportional to 74,258.12, 102,476.34 and 40,724.36

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Solution

The fourth proportional to 74,258.12, 102,476.34 and 40,724.36 is: 56,199.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,258.12 : 102,476.34 = 40,724.36 : x
  2. Step 2: Convert to fraction form
    74,258.12/102,476.34 = 40,724.36/x
  3. Step 3: Cross multiply
    74,258.12x = 102,476.34 × 40,724.36
  4. Step 4: Simplify right side
    74,258.12x = 4,173,283,361.64
  5. Step 5: Solve for x
    x = 4,173,283,361.64/74,258.12
  6. Step 6: Final answer
    x = 56,199.69

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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.