Home / 88,200.02-121,716.87-47,914.09

Finding the Fourth Proportional to 88,200.02, 121,716.87 and 47,914.09

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Solution

The fourth proportional to 88,200.02, 121,716.87 and 47,914.09 is: 66,121.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,200.02 : 121,716.87 = 47,914.09 : x
  2. Step 2: Convert to fraction form
    88,200.02/121,716.87 = 47,914.09/x
  3. Step 3: Cross multiply
    88,200.02x = 121,716.87 × 47,914.09
  4. Step 4: Simplify right side
    88,200.02x = 5,831,952,455.11
  5. Step 5: Solve for x
    x = 5,831,952,455.11/88,200.02
  6. Step 6: Final answer
    x = 66,121.89

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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.