Home / 86,291.85-129,443.64-29,342.56

Finding the Fourth Proportional to 86,291.85, 129,443.64 and 29,342.56

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Solution

The fourth proportional to 86,291.85, 129,443.64 and 29,342.56 is: 44,015.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,291.85 : 129,443.64 = 29,342.56 : x
  2. Step 2: Convert to fraction form
    86,291.85/129,443.64 = 29,342.56/x
  3. Step 3: Cross multiply
    86,291.85x = 129,443.64 × 29,342.56
  4. Step 4: Simplify right side
    86,291.85x = 3,798,207,773.32
  5. Step 5: Solve for x
    x = 3,798,207,773.32/86,291.85
  6. Step 6: Final answer
    x = 44,015.83

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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.