Home / 86,075.66-129,113.60-26,911.64

Finding the Fourth Proportional to 86,075.66, 129,113.60 and 26,911.64

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Solution

The fourth proportional to 86,075.66, 129,113.60 and 26,911.64 is: 40,367.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,075.66 : 129,113.60 = 26,911.64 : x
  2. Step 2: Convert to fraction form
    86,075.66/129,113.60 = 26,911.64/x
  3. Step 3: Cross multiply
    86,075.66x = 129,113.60 × 26,911.64
  4. Step 4: Simplify right side
    86,075.66x = 3,474,658,910.53
  5. Step 5: Solve for x
    x = 3,474,658,910.53/86,075.66
  6. Step 6: Final answer
    x = 40,367.50

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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.