Home / 52,652.20-72,660.90-31,433.32

Finding the Fourth Proportional to 52,652.20, 72,660.90 and 31,433.32

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Solution

The fourth proportional to 52,652.20, 72,660.90 and 31,433.32 is: 43,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,652.20 : 72,660.90 = 31,433.32 : x
  2. Step 2: Convert to fraction form
    52,652.20/72,660.90 = 31,433.32/x
  3. Step 3: Cross multiply
    52,652.20x = 72,660.90 × 31,433.32
  4. Step 4: Simplify right side
    52,652.20x = 2,283,973,321.19
  5. Step 5: Solve for x
    x = 2,283,973,321.19/52,652.20
  6. Step 6: Final answer
    x = 43,378.50

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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.