Home / 86,257.93-129,345.96-30,091.21

Finding the Fourth Proportional to 86,257.93, 129,345.96 and 30,091.21

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Solution

The fourth proportional to 86,257.93, 129,345.96 and 30,091.21 is: 45,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,257.93 : 129,345.96 = 30,091.21 : x
  2. Step 2: Convert to fraction form
    86,257.93/129,345.96 = 30,091.21/x
  3. Step 3: Cross multiply
    86,257.93x = 129,345.96 × 30,091.21
  4. Step 4: Simplify right side
    86,257.93x = 3,892,176,445.01
  5. Step 5: Solve for x
    x = 3,892,176,445.01/86,257.93
  6. Step 6: Final answer
    x = 45,122.53

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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.