Home / 82,977.30-124,465.98-20,647.80

Finding the Fourth Proportional to 82,977.30, 124,465.98 and 20,647.80

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Solution

The fourth proportional to 82,977.30, 124,465.98 and 20,647.80 is: 30,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,977.30 : 124,465.98 = 20,647.80 : x
  2. Step 2: Convert to fraction form
    82,977.30/124,465.98 = 20,647.80/x
  3. Step 3: Cross multiply
    82,977.30x = 124,465.98 × 20,647.80
  4. Step 4: Simplify right side
    82,977.30x = 2,569,948,661.84
  5. Step 5: Solve for x
    x = 2,569,948,661.84/82,977.30
  6. Step 6: Final answer
    x = 30,971.71

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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.