Home / 86,596.32-129,895.43-30,438.03

Finding the Fourth Proportional to 86,596.32, 129,895.43 and 30,438.03

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Solution

The fourth proportional to 86,596.32, 129,895.43 and 30,438.03 is: 45,657.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,596.32 : 129,895.43 = 30,438.03 : x
  2. Step 2: Convert to fraction form
    86,596.32/129,895.43 = 30,438.03/x
  3. Step 3: Cross multiply
    86,596.32x = 129,895.43 × 30,438.03
  4. Step 4: Simplify right side
    86,596.32x = 3,953,760,995.20
  5. Step 5: Solve for x
    x = 3,953,760,995.20/86,596.32
  6. Step 6: Final answer
    x = 45,657.38

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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.