Home / 86,429.85-129,644.74-27,271.50

Finding the Fourth Proportional to 86,429.85, 129,644.74 and 27,271.50

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Solution

The fourth proportional to 86,429.85, 129,644.74 and 27,271.50 is: 40,907.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,429.85 : 129,644.74 = 27,271.50 : x
  2. Step 2: Convert to fraction form
    86,429.85/129,644.74 = 27,271.50/x
  3. Step 3: Cross multiply
    86,429.85x = 129,644.74 × 27,271.50
  4. Step 4: Simplify right side
    86,429.85x = 3,535,606,526.91
  5. Step 5: Solve for x
    x = 3,535,606,526.91/86,429.85
  6. Step 6: Final answer
    x = 40,907.24

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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.