Home / 86,823.13-130,234.69-57,234.04

Finding the Fourth Proportional to 86,823.13, 130,234.69 and 57,234.04

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Solution

The fourth proportional to 86,823.13, 130,234.69 and 57,234.04 is: 85,851.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,823.13 : 130,234.69 = 57,234.04 : x
  2. Step 2: Convert to fraction form
    86,823.13/130,234.69 = 57,234.04/x
  3. Step 3: Cross multiply
    86,823.13x = 130,234.69 × 57,234.04
  4. Step 4: Simplify right side
    86,823.13x = 7,453,857,975.62
  5. Step 5: Solve for x
    x = 7,453,857,975.62/86,823.13
  6. Step 6: Final answer
    x = 85,851.06

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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.