Home / 86,485.68-129,725.04-27,324.72

Finding the Fourth Proportional to 86,485.68, 129,725.04 and 27,324.72

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Solution

The fourth proportional to 86,485.68, 129,725.04 and 27,324.72 is: 40,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.68 : 129,725.04 = 27,324.72 : x
  2. Step 2: Convert to fraction form
    86,485.68/129,725.04 = 27,324.72/x
  3. Step 3: Cross multiply
    86,485.68x = 129,725.04 × 27,324.72
  4. Step 4: Simplify right side
    86,485.68x = 3,544,700,394.99
  5. Step 5: Solve for x
    x = 3,544,700,394.99/86,485.68
  6. Step 6: Final answer
    x = 40,985.98

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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.