Home / 86,485.61-129,741.17-27,307.82

Finding the Fourth Proportional to 86,485.61, 129,741.17 and 27,307.82

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Solution

The fourth proportional to 86,485.61, 129,741.17 and 27,307.82 is: 40,965.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.61 : 129,741.17 = 27,307.82 : x
  2. Step 2: Convert to fraction form
    86,485.61/129,741.17 = 27,307.82/x
  3. Step 3: Cross multiply
    86,485.61x = 129,741.17 × 27,307.82
  4. Step 4: Simplify right side
    86,485.61x = 3,542,947,731.70
  5. Step 5: Solve for x
    x = 3,542,947,731.70/86,485.61
  6. Step 6: Final answer
    x = 40,965.75

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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.