Home / 86,660.48-129,995.34-27,500.78

Finding the Fourth Proportional to 86,660.48, 129,995.34 and 27,500.78

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Solution

The fourth proportional to 86,660.48, 129,995.34 and 27,500.78 is: 41,252.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,660.48 : 129,995.34 = 27,500.78 : x
  2. Step 2: Convert to fraction form
    86,660.48/129,995.34 = 27,500.78/x
  3. Step 3: Cross multiply
    86,660.48x = 129,995.34 × 27,500.78
  4. Step 4: Simplify right side
    86,660.48x = 3,574,973,246.37
  5. Step 5: Solve for x
    x = 3,574,973,246.37/86,660.48
  6. Step 6: Final answer
    x = 41,252.64

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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.