Home / 86,487.90-129,718.89-33,933.66

Finding the Fourth Proportional to 86,487.90, 129,718.89 and 33,933.66

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Solution

The fourth proportional to 86,487.90, 129,718.89 and 33,933.66 is: 50,895.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,487.90 : 129,718.89 = 33,933.66 : x
  2. Step 2: Convert to fraction form
    86,487.90/129,718.89 = 33,933.66/x
  3. Step 3: Cross multiply
    86,487.90x = 129,718.89 × 33,933.66
  4. Step 4: Simplify right side
    86,487.90x = 4,401,836,708.84
  5. Step 5: Solve for x
    x = 4,401,836,708.84/86,487.90
  6. Step 6: Final answer
    x = 50,895.41

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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.