Home / 81,415.43-112,354.46-47,423.04

Finding the Fourth Proportional to 81,415.43, 112,354.46 and 47,423.04

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Solution

The fourth proportional to 81,415.43, 112,354.46 and 47,423.04 is: 65,444.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,415.43 : 112,354.46 = 47,423.04 : x
  2. Step 2: Convert to fraction form
    81,415.43/112,354.46 = 47,423.04/x
  3. Step 3: Cross multiply
    81,415.43x = 112,354.46 × 47,423.04
  4. Step 4: Simplify right side
    81,415.43x = 5,328,189,570.15
  5. Step 5: Solve for x
    x = 5,328,189,570.15/81,415.43
  6. Step 6: Final answer
    x = 65,444.47

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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.