Home / 86,661.28-129,991.32-24,331.84

Finding the Fourth Proportional to 86,661.28, 129,991.32 and 24,331.84

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Solution

The fourth proportional to 86,661.28, 129,991.32 and 24,331.84 is: 36,497.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,661.28 : 129,991.32 = 24,331.84 : x
  2. Step 2: Convert to fraction form
    86,661.28/129,991.32 = 24,331.84/x
  3. Step 3: Cross multiply
    86,661.28x = 129,991.32 × 24,331.84
  4. Step 4: Simplify right side
    86,661.28x = 3,162,927,999.63
  5. Step 5: Solve for x
    x = 3,162,927,999.63/86,661.28
  6. Step 6: Final answer
    x = 36,497.59

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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.