Home / 86,494.21-129,758.82-36,574.23

Finding the Fourth Proportional to 86,494.21, 129,758.82 and 36,574.23

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Solution

The fourth proportional to 86,494.21, 129,758.82 and 36,574.23 is: 54,868.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,494.21 : 129,758.82 = 36,574.23 : x
  2. Step 2: Convert to fraction form
    86,494.21/129,758.82 = 36,574.23/x
  3. Step 3: Cross multiply
    86,494.21x = 129,758.82 × 36,574.23
  4. Step 4: Simplify right side
    86,494.21x = 4,745,828,927.21
  5. Step 5: Solve for x
    x = 4,745,828,927.21/86,494.21
  6. Step 6: Final answer
    x = 54,868.75

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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.