Home / 55,330.20-82,904.10-31,915.80

Finding the Fourth Proportional to 55,330.20, 82,904.10 and 31,915.80

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Solution

The fourth proportional to 55,330.20, 82,904.10 and 31,915.80 is: 47,821.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,330.20 : 82,904.10 = 31,915.80 : x
  2. Step 2: Convert to fraction form
    55,330.20/82,904.10 = 31,915.80/x
  3. Step 3: Cross multiply
    55,330.20x = 82,904.10 × 31,915.80
  4. Step 4: Simplify right side
    55,330.20x = 2,645,950,674.78
  5. Step 5: Solve for x
    x = 2,645,950,674.78/55,330.20
  6. Step 6: Final answer
    x = 47,821.09

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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.