Home / 82,740.40-124,107.96-26,580.28

Finding the Fourth Proportional to 82,740.40, 124,107.96 and 26,580.28

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Solution

The fourth proportional to 82,740.40, 124,107.96 and 26,580.28 is: 39,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,740.40 : 124,107.96 = 26,580.28 : x
  2. Step 2: Convert to fraction form
    82,740.40/124,107.96 = 26,580.28/x
  3. Step 3: Cross multiply
    82,740.40x = 124,107.96 × 26,580.28
  4. Step 4: Simplify right side
    82,740.40x = 3,298,824,327.03
  5. Step 5: Solve for x
    x = 3,298,824,327.03/82,740.40
  6. Step 6: Final answer
    x = 39,869.57

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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.