Home / 71,922.02-99,253.68-40,087.50

Finding the Fourth Proportional to 71,922.02, 99,253.68 and 40,087.50

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Solution

The fourth proportional to 71,922.02, 99,253.68 and 40,087.50 is: 55,321.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,922.02 : 99,253.68 = 40,087.50 : x
  2. Step 2: Convert to fraction form
    71,922.02/99,253.68 = 40,087.50/x
  3. Step 3: Cross multiply
    71,922.02x = 99,253.68 × 40,087.50
  4. Step 4: Simplify right side
    71,922.02x = 3,978,831,897.00
  5. Step 5: Solve for x
    x = 3,978,831,897.00/71,922.02
  6. Step 6: Final answer
    x = 55,321.47

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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.