Home / 312,522.03-468,783.21-87,882.45

Finding the Fourth Proportional to 312,522.03, 468,783.21 and 87,882.45

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Solution

The fourth proportional to 312,522.03, 468,783.21 and 87,882.45 is: 131,823.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,522.03 : 468,783.21 = 87,882.45 : x
  2. Step 2: Convert to fraction form
    312,522.03/468,783.21 = 87,882.45/x
  3. Step 3: Cross multiply
    312,522.03x = 468,783.21 × 87,882.45
  4. Step 4: Simplify right side
    312,522.03x = 41,197,817,013.66
  5. Step 5: Solve for x
    x = 41,197,817,013.66/312,522.03
  6. Step 6: Final answer
    x = 131,823.72

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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.