Home / 85,583.07-128,367.32-26,419.19

Finding the Fourth Proportional to 85,583.07, 128,367.32 and 26,419.19

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Solution

The fourth proportional to 85,583.07, 128,367.32 and 26,419.19 is: 39,626.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,583.07 : 128,367.32 = 26,419.19 : x
  2. Step 2: Convert to fraction form
    85,583.07/128,367.32 = 26,419.19/x
  3. Step 3: Cross multiply
    85,583.07x = 128,367.32 × 26,419.19
  4. Step 4: Simplify right side
    85,583.07x = 3,391,359,842.94
  5. Step 5: Solve for x
    x = 3,391,359,842.94/85,583.07
  6. Step 6: Final answer
    x = 39,626.53

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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.