Home / 49,905.32-68,712.18-42,335.96

Finding the Fourth Proportional to 49,905.32, 68,712.18 and 42,335.96

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Solution

The fourth proportional to 49,905.32, 68,712.18 and 42,335.96 is: 58,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,905.32 : 68,712.18 = 42,335.96 : x
  2. Step 2: Convert to fraction form
    49,905.32/68,712.18 = 42,335.96/x
  3. Step 3: Cross multiply
    49,905.32x = 68,712.18 × 42,335.96
  4. Step 4: Simplify right side
    49,905.32x = 2,908,996,103.99
  5. Step 5: Solve for x
    x = 2,908,996,103.99/49,905.32
  6. Step 6: Final answer
    x = 58,290.30

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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.