Home / 74,477.64-111,741.30-30,080.46

Finding the Fourth Proportional to 74,477.64, 111,741.30 and 30,080.46

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Solution

The fourth proportional to 74,477.64, 111,741.30 and 30,080.46 is: 45,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,477.64 : 111,741.30 = 30,080.46 : x
  2. Step 2: Convert to fraction form
    74,477.64/111,741.30 = 30,080.46/x
  3. Step 3: Cross multiply
    74,477.64x = 111,741.30 × 30,080.46
  4. Step 4: Simplify right side
    74,477.64x = 3,361,229,705.00
  5. Step 5: Solve for x
    x = 3,361,229,705.00/74,477.64
  6. Step 6: Final answer
    x = 45,130.72

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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.