Home / 74,169.58-102,361.36-42,343.28

Finding the Fourth Proportional to 74,169.58, 102,361.36 and 42,343.28

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Solution

The fourth proportional to 74,169.58, 102,361.36 and 42,343.28 is: 58,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,169.58 : 102,361.36 = 42,343.28 : x
  2. Step 2: Convert to fraction form
    74,169.58/102,361.36 = 42,343.28/x
  3. Step 3: Cross multiply
    74,169.58x = 102,361.36 × 42,343.28
  4. Step 4: Simplify right side
    74,169.58x = 4,334,315,727.66
  5. Step 5: Solve for x
    x = 4,334,315,727.66/74,169.58
  6. Step 6: Final answer
    x = 58,437.92

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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.