Home / 74,978.30-112,412.03-35,489.18

Finding the Fourth Proportional to 74,978.30, 112,412.03 and 35,489.18

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Solution

The fourth proportional to 74,978.30, 112,412.03 and 35,489.18 is: 53,207.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,978.30 : 112,412.03 = 35,489.18 : x
  2. Step 2: Convert to fraction form
    74,978.30/112,412.03 = 35,489.18/x
  3. Step 3: Cross multiply
    74,978.30x = 112,412.03 × 35,489.18
  4. Step 4: Simplify right side
    74,978.30x = 3,989,410,027.33
  5. Step 5: Solve for x
    x = 3,989,410,027.33/74,978.30
  6. Step 6: Final answer
    x = 53,207.53

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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.