Home / 73,981.64-110,973.24-21,391.58

Finding the Fourth Proportional to 73,981.64, 110,973.24 and 21,391.58

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Solution

The fourth proportional to 73,981.64, 110,973.24 and 21,391.58 is: 32,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,981.64 : 110,973.24 = 21,391.58 : x
  2. Step 2: Convert to fraction form
    73,981.64/110,973.24 = 21,391.58/x
  3. Step 3: Cross multiply
    73,981.64x = 110,973.24 × 21,391.58
  4. Step 4: Simplify right side
    73,981.64x = 2,373,892,941.32
  5. Step 5: Solve for x
    x = 2,373,892,941.32/73,981.64
  6. Step 6: Final answer
    x = 32,087.60

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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.