Home / 86,370.24-129,560-27,210.54

Finding the Fourth Proportional to 86,370.24, 129,560 and 27,210.54

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Solution

The fourth proportional to 86,370.24, 129,560 and 27,210.54 is: 40,817.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,370.24 : 129,560 = 27,210.54 : x
  2. Step 2: Convert to fraction form
    86,370.24/129,560 = 27,210.54/x
  3. Step 3: Cross multiply
    86,370.24x = 129,560 × 27,210.54
  4. Step 4: Simplify right side
    86,370.24x = 3,525,397,562.40
  5. Step 5: Solve for x
    x = 3,525,397,562.40/86,370.24
  6. Step 6: Final answer
    x = 40,817.27

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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.