Home / 86,249.88-129,333.85-30,083.16

Finding the Fourth Proportional to 86,249.88, 129,333.85 and 30,083.16

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Solution

The fourth proportional to 86,249.88, 129,333.85 and 30,083.16 is: 45,110.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249.88 : 129,333.85 = 30,083.16 : x
  2. Step 2: Convert to fraction form
    86,249.88/129,333.85 = 30,083.16/x
  3. Step 3: Cross multiply
    86,249.88x = 129,333.85 × 30,083.16
  4. Step 4: Simplify right side
    86,249.88x = 3,890,771,312.76
  5. Step 5: Solve for x
    x = 3,890,771,312.76/86,249.88
  6. Step 6: Final answer
    x = 45,110.45

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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.