Home / 66,412.60-91,608.44-40,559.02

Finding the Fourth Proportional to 66,412.60, 91,608.44 and 40,559.02

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Solution

The fourth proportional to 66,412.60, 91,608.44 and 40,559.02 is: 55,946.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,412.60 : 91,608.44 = 40,559.02 : x
  2. Step 2: Convert to fraction form
    66,412.60/91,608.44 = 40,559.02/x
  3. Step 3: Cross multiply
    66,412.60x = 91,608.44 × 40,559.02
  4. Step 4: Simplify right side
    66,412.60x = 3,715,548,550.13
  5. Step 5: Solve for x
    x = 3,715,548,550.13/66,412.60
  6. Step 6: Final answer
    x = 55,946.44

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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.