Home / 73,913.60-110,838-21,321.92

Finding the Fourth Proportional to 73,913.60, 110,838 and 21,321.92

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Solution

The fourth proportional to 73,913.60, 110,838 and 21,321.92 is: 31,973.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,913.60 : 110,838 = 21,321.92 : x
  2. Step 2: Convert to fraction form
    73,913.60/110,838 = 21,321.92/x
  3. Step 3: Cross multiply
    73,913.60x = 110,838 × 21,321.92
  4. Step 4: Simplify right side
    73,913.60x = 2,363,278,968.96
  5. Step 5: Solve for x
    x = 2,363,278,968.96/73,913.60
  6. Step 6: Final answer
    x = 31,973.53

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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.