Home / 74,392.34-111,447.78-57,670.43

Finding the Fourth Proportional to 74,392.34, 111,447.78 and 57,670.43

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Solution

The fourth proportional to 74,392.34, 111,447.78 and 57,670.43 is: 86,396.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,392.34 : 111,447.78 = 57,670.43 : x
  2. Step 2: Convert to fraction form
    74,392.34/111,447.78 = 57,670.43/x
  3. Step 3: Cross multiply
    74,392.34x = 111,447.78 × 57,670.43
  4. Step 4: Simplify right side
    74,392.34x = 6,427,241,395.15
  5. Step 5: Solve for x
    x = 6,427,241,395.15/74,392.34
  6. Step 6: Final answer
    x = 86,396.55

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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.