Home / 82,142.80-113,402.21-53,487.43

Finding the Fourth Proportional to 82,142.80, 113,402.21 and 53,487.43

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Solution

The fourth proportional to 82,142.80, 113,402.21 and 53,487.43 is: 73,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,142.80 : 113,402.21 = 53,487.43 : x
  2. Step 2: Convert to fraction form
    82,142.80/113,402.21 = 53,487.43/x
  3. Step 3: Cross multiply
    82,142.80x = 113,402.21 × 53,487.43
  4. Step 4: Simplify right side
    82,142.80x = 6,065,592,218.28
  5. Step 5: Solve for x
    x = 6,065,592,218.28/82,142.80
  6. Step 6: Final answer
    x = 73,842.05

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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.