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Finding the Fourth Proportional to 47,313.84, 70,935.12 and 28,589.88

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Solution

The fourth proportional to 47,313.84, 70,935.12 and 28,589.88 is: 42,863.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,313.84 : 70,935.12 = 28,589.88 : x
  2. Step 2: Convert to fraction form
    47,313.84/70,935.12 = 28,589.88/x
  3. Step 3: Cross multiply
    47,313.84x = 70,935.12 × 28,589.88
  4. Step 4: Simplify right side
    47,313.84x = 2,028,026,568.59
  5. Step 5: Solve for x
    x = 2,028,026,568.59/47,313.84
  6. Step 6: Final answer
    x = 42,863.28

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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.