Home / 48,731.24-67,182.18-30,817.28

Finding the Fourth Proportional to 48,731.24, 67,182.18 and 30,817.28

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Solution

The fourth proportional to 48,731.24, 67,182.18 and 30,817.28 is: 42,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,731.24 : 67,182.18 = 30,817.28 : x
  2. Step 2: Convert to fraction form
    48,731.24/67,182.18 = 30,817.28/x
  3. Step 3: Cross multiply
    48,731.24x = 67,182.18 × 30,817.28
  4. Step 4: Simplify right side
    48,731.24x = 2,070,372,052.07
  5. Step 5: Solve for x
    x = 2,070,372,052.07/48,731.24
  6. Step 6: Final answer
    x = 42,485.52

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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.