Home / 82,801.80-124,285.10-38,438.60

Finding the Fourth Proportional to 82,801.80, 124,285.10 and 38,438.60

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Solution

The fourth proportional to 82,801.80, 124,285.10 and 38,438.60 is: 57,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,801.80 : 124,285.10 = 38,438.60 : x
  2. Step 2: Convert to fraction form
    82,801.80/124,285.10 = 38,438.60/x
  3. Step 3: Cross multiply
    82,801.80x = 124,285.10 × 38,438.60
  4. Step 4: Simplify right side
    82,801.80x = 4,777,345,244.86
  5. Step 5: Solve for x
    x = 4,777,345,244.86/82,801.80
  6. Step 6: Final answer
    x = 57,696.15

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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.