Home / 86,208.50-129,312.78-27,048.80

Finding the Fourth Proportional to 86,208.50, 129,312.78 and 27,048.80

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Solution

The fourth proportional to 86,208.50, 129,312.78 and 27,048.80 is: 40,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,208.50 : 129,312.78 = 27,048.80 : x
  2. Step 2: Convert to fraction form
    86,208.50/129,312.78 = 27,048.80/x
  3. Step 3: Cross multiply
    86,208.50x = 129,312.78 × 27,048.80
  4. Step 4: Simplify right side
    86,208.50x = 3,497,755,523.66
  5. Step 5: Solve for x
    x = 3,497,755,523.66/86,208.50
  6. Step 6: Final answer
    x = 40,573.21

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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.