Home / 47,675.46-71,528.62-28,720.64

Finding the Fourth Proportional to 47,675.46, 71,528.62 and 28,720.64

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Solution

The fourth proportional to 47,675.46, 71,528.62 and 28,720.64 is: 43,090.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,675.46 : 71,528.62 = 28,720.64 : x
  2. Step 2: Convert to fraction form
    47,675.46/71,528.62 = 28,720.64/x
  3. Step 3: Cross multiply
    47,675.46x = 71,528.62 × 28,720.64
  4. Step 4: Simplify right side
    47,675.46x = 2,054,347,744.72
  5. Step 5: Solve for x
    x = 2,054,347,744.72/47,675.46
  6. Step 6: Final answer
    x = 43,090.26

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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.