Home / 74,742.26-111,986.51-45,097.80

Finding the Fourth Proportional to 74,742.26, 111,986.51 and 45,097.80

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Solution

The fourth proportional to 74,742.26, 111,986.51 and 45,097.80 is: 67,570.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,742.26 : 111,986.51 = 45,097.80 : x
  2. Step 2: Convert to fraction form
    74,742.26/111,986.51 = 45,097.80/x
  3. Step 3: Cross multiply
    74,742.26x = 111,986.51 × 45,097.80
  4. Step 4: Simplify right side
    74,742.26x = 5,050,345,005.19
  5. Step 5: Solve for x
    x = 5,050,345,005.19/74,742.26
  6. Step 6: Final answer
    x = 67,570.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.