Home / 88,321.20-121,914.54-52,511.02

Finding the Fourth Proportional to 88,321.20, 121,914.54 and 52,511.02

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Solution

The fourth proportional to 88,321.20, 121,914.54 and 52,511.02 is: 72,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,321.20 : 121,914.54 = 52,511.02 : x
  2. Step 2: Convert to fraction form
    88,321.20/121,914.54 = 52,511.02/x
  3. Step 3: Cross multiply
    88,321.20x = 121,914.54 × 52,511.02
  4. Step 4: Simplify right side
    88,321.20x = 6,401,856,848.23
  5. Step 5: Solve for x
    x = 6,401,856,848.23/88,321.20
  6. Step 6: Final answer
    x = 72,483.81

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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.