Home / 82,918.90-124,429.65-43,504.30

Finding the Fourth Proportional to 82,918.90, 124,429.65 and 43,504.30

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Solution

The fourth proportional to 82,918.90, 124,429.65 and 43,504.30 is: 65,283.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,918.90 : 124,429.65 = 43,504.30 : x
  2. Step 2: Convert to fraction form
    82,918.90/124,429.65 = 43,504.30/x
  3. Step 3: Cross multiply
    82,918.90x = 124,429.65 × 43,504.30
  4. Step 4: Simplify right side
    82,918.90x = 5,413,224,822.50
  5. Step 5: Solve for x
    x = 5,413,224,822.50/82,918.90
  6. Step 6: Final answer
    x = 65,283.37

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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.