Home / 86,837.55-119,859.39-51,039.06

Finding the Fourth Proportional to 86,837.55, 119,859.39 and 51,039.06

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Solution

The fourth proportional to 86,837.55, 119,859.39 and 51,039.06 is: 70,447.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,837.55 : 119,859.39 = 51,039.06 : x
  2. Step 2: Convert to fraction form
    86,837.55/119,859.39 = 51,039.06/x
  3. Step 3: Cross multiply
    86,837.55x = 119,859.39 × 51,039.06
  4. Step 4: Simplify right side
    86,837.55x = 6,117,510,597.77
  5. Step 5: Solve for x
    x = 6,117,510,597.77/86,837.55
  6. Step 6: Final answer
    x = 70,447.76

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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.