Home / 82,842.40-124,284.30-26,687.80

Finding the Fourth Proportional to 82,842.40, 124,284.30 and 26,687.80

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Solution

The fourth proportional to 82,842.40, 124,284.30 and 26,687.80 is: 40,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,842.40 : 124,284.30 = 26,687.80 : x
  2. Step 2: Convert to fraction form
    82,842.40/124,284.30 = 26,687.80/x
  3. Step 3: Cross multiply
    82,842.40x = 124,284.30 × 26,687.80
  4. Step 4: Simplify right side
    82,842.40x = 3,316,874,541.54
  5. Step 5: Solve for x
    x = 3,316,874,541.54/82,842.40
  6. Step 6: Final answer
    x = 40,038.37

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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.