Home / 74,361.12-102,618.72-42,531.36

Finding the Fourth Proportional to 74,361.12, 102,618.72 and 42,531.36

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Solution

The fourth proportional to 74,361.12, 102,618.72 and 42,531.36 is: 58,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,361.12 : 102,618.72 = 42,531.36 : x
  2. Step 2: Convert to fraction form
    74,361.12/102,618.72 = 42,531.36/x
  3. Step 3: Cross multiply
    74,361.12x = 102,618.72 × 42,531.36
  4. Step 4: Simplify right side
    74,361.12x = 4,364,513,723.06
  5. Step 5: Solve for x
    x = 4,364,513,723.06/74,361.12
  6. Step 6: Final answer
    x = 58,693.49

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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.