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Finding the Fourth Proportional to 108,049.80, 162,001.80 and 57,457.20

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Solution

The fourth proportional to 108,049.80, 162,001.80 and 57,457.20 is: 86,147.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,049.80 : 162,001.80 = 57,457.20 : x
  2. Step 2: Convert to fraction form
    108,049.80/162,001.80 = 57,457.20/x
  3. Step 3: Cross multiply
    108,049.80x = 162,001.80 × 57,457.20
  4. Step 4: Simplify right side
    108,049.80x = 9,308,169,822.96
  5. Step 5: Solve for x
    x = 9,308,169,822.96/108,049.80
  6. Step 6: Final answer
    x = 86,147.03

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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.