Home / 86,521.37-129,785.09-44,390.03

Finding the Fourth Proportional to 86,521.37, 129,785.09 and 44,390.03

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Solution

The fourth proportional to 86,521.37, 129,785.09 and 44,390.03 is: 66,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,521.37 : 129,785.09 = 44,390.03 : x
  2. Step 2: Convert to fraction form
    86,521.37/129,785.09 = 44,390.03/x
  3. Step 3: Cross multiply
    86,521.37x = 129,785.09 × 44,390.03
  4. Step 4: Simplify right side
    86,521.37x = 5,761,163,167.78
  5. Step 5: Solve for x
    x = 5,761,163,167.78/86,521.37
  6. Step 6: Final answer
    x = 66,586.60

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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.