Home / 82,531.12-113,893.40-48,541.03

Finding the Fourth Proportional to 82,531.12, 113,893.40 and 48,541.03

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Solution

The fourth proportional to 82,531.12, 113,893.40 and 48,541.03 is: 66,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,531.12 : 113,893.40 = 48,541.03 : x
  2. Step 2: Convert to fraction form
    82,531.12/113,893.40 = 48,541.03/x
  3. Step 3: Cross multiply
    82,531.12x = 113,893.40 × 48,541.03
  4. Step 4: Simplify right side
    82,531.12x = 5,528,502,946.20
  5. Step 5: Solve for x
    x = 5,528,502,946.20/82,531.12
  6. Step 6: Final answer
    x = 66,986.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.