Home / 66,620.04-91,892.66-39,741.80

Finding the Fourth Proportional to 66,620.04, 91,892.66 and 39,741.80

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Solution

The fourth proportional to 66,620.04, 91,892.66 and 39,741.80 is: 54,818.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,620.04 : 91,892.66 = 39,741.80 : x
  2. Step 2: Convert to fraction form
    66,620.04/91,892.66 = 39,741.80/x
  3. Step 3: Cross multiply
    66,620.04x = 91,892.66 × 39,741.80
  4. Step 4: Simplify right side
    66,620.04x = 3,651,979,715.19
  5. Step 5: Solve for x
    x = 3,651,979,715.19/66,620.04
  6. Step 6: Final answer
    x = 54,818.04

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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.