Home / 61,366.09-84,686.25-40,145.36

Finding the Fourth Proportional to 61,366.09, 84,686.25 and 40,145.36

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Solution

The fourth proportional to 61,366.09, 84,686.25 and 40,145.36 is: 55,401.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,366.09 : 84,686.25 = 40,145.36 : x
  2. Step 2: Convert to fraction form
    61,366.09/84,686.25 = 40,145.36/x
  3. Step 3: Cross multiply
    61,366.09x = 84,686.25 × 40,145.36
  4. Step 4: Simplify right side
    61,366.09x = 3,399,759,993.30
  5. Step 5: Solve for x
    x = 3,399,759,993.30/61,366.09
  6. Step 6: Final answer
    x = 55,401.28

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1.5x scale

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.