Home / 40,689.96-61,066.19-18,207.60

Finding the Fourth Proportional to 40,689.96, 61,066.19 and 18,207.60

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Solution

The fourth proportional to 40,689.96, 61,066.19 and 18,207.60 is: 27,325.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,689.96 : 61,066.19 = 18,207.60 : x
  2. Step 2: Convert to fraction form
    40,689.96/61,066.19 = 18,207.60/x
  3. Step 3: Cross multiply
    40,689.96x = 61,066.19 × 18,207.60
  4. Step 4: Simplify right side
    40,689.96x = 1,111,868,761.04
  5. Step 5: Solve for x
    x = 1,111,868,761.04/40,689.96
  6. Step 6: Final answer
    x = 27,325.38

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1.5x scale

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.