Home / 98,533.40-135,976.26-53,821.40

Finding the Fourth Proportional to 98,533.40, 135,976.26 and 53,821.40

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Solution

The fourth proportional to 98,533.40, 135,976.26 and 53,821.40 is: 74,273.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,533.40 : 135,976.26 = 53,821.40 : x
  2. Step 2: Convert to fraction form
    98,533.40/135,976.26 = 53,821.40/x
  3. Step 3: Cross multiply
    98,533.40x = 135,976.26 × 53,821.40
  4. Step 4: Simplify right side
    98,533.40x = 7,318,432,679.96
  5. Step 5: Solve for x
    x = 7,318,432,679.96/98,533.40
  6. Step 6: Final answer
    x = 74,273.62

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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.