Home / 84,036-115,968.24-45,795.90

Finding the Fourth Proportional to 84,036, 115,968.24 and 45,795.90

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Solution

The fourth proportional to 84,036, 115,968.24 and 45,795.90 is: 63,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,036 : 115,968.24 = 45,795.90 : x
  2. Step 2: Convert to fraction form
    84,036/115,968.24 = 45,795.90/x
  3. Step 3: Cross multiply
    84,036x = 115,968.24 × 45,795.90
  4. Step 4: Simplify right side
    84,036x = 5,310,869,922.22
  5. Step 5: Solve for x
    x = 5,310,869,922.22/84,036
  6. Step 6: Final answer
    x = 63,197.56

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1.5x scale

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.