Home / 86,322.06-129,483.48-30,161.88

Finding the Fourth Proportional to 86,322.06, 129,483.48 and 30,161.88

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Solution

The fourth proportional to 86,322.06, 129,483.48 and 30,161.88 is: 45,242.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,322.06 : 129,483.48 = 30,161.88 : x
  2. Step 2: Convert to fraction form
    86,322.06/129,483.48 = 30,161.88/x
  3. Step 3: Cross multiply
    86,322.06x = 129,483.48 × 30,161.88
  4. Step 4: Simplify right side
    86,322.06x = 3,905,465,185.74
  5. Step 5: Solve for x
    x = 3,905,465,185.74/86,322.06
  6. Step 6: Final answer
    x = 45,242.96

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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.