Home / 86,249.19-129,332.82-30,082.48

Finding the Fourth Proportional to 86,249.19, 129,332.82 and 30,082.48

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Solution

The fourth proportional to 86,249.19, 129,332.82 and 30,082.48 is: 45,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249.19 : 129,332.82 = 30,082.48 : x
  2. Step 2: Convert to fraction form
    86,249.19/129,332.82 = 30,082.48/x
  3. Step 3: Cross multiply
    86,249.19x = 129,332.82 × 30,082.48
  4. Step 4: Simplify right side
    86,249.19x = 3,890,651,970.99
  5. Step 5: Solve for x
    x = 3,890,651,970.99/86,249.19
  6. Step 6: Final answer
    x = 45,109.43

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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.