Home / 86,331.96-129,503.16-27,169.56

Finding the Fourth Proportional to 86,331.96, 129,503.16 and 27,169.56

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Solution

The fourth proportional to 86,331.96, 129,503.16 and 27,169.56 is: 40,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,331.96 : 129,503.16 = 27,169.56 : x
  2. Step 2: Convert to fraction form
    86,331.96/129,503.16 = 27,169.56/x
  3. Step 3: Cross multiply
    86,331.96x = 129,503.16 × 27,169.56
  4. Step 4: Simplify right side
    86,331.96x = 3,518,543,875.81
  5. Step 5: Solve for x
    x = 3,518,543,875.81/86,331.96
  6. Step 6: Final answer
    x = 40,755.98

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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.