Home / 65,205.43-97,826.70-20,835.64

Finding the Fourth Proportional to 65,205.43, 97,826.70 and 20,835.64

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Solution

The fourth proportional to 65,205.43, 97,826.70 and 20,835.64 is: 31,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,205.43 : 97,826.70 = 20,835.64 : x
  2. Step 2: Convert to fraction form
    65,205.43/97,826.70 = 20,835.64/x
  3. Step 3: Cross multiply
    65,205.43x = 97,826.70 × 20,835.64
  4. Step 4: Simplify right side
    65,205.43x = 2,038,281,903.59
  5. Step 5: Solve for x
    x = 2,038,281,903.59/65,205.43
  6. Step 6: Final answer
    x = 31,259.39

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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.