Home / 81,539.72-112,523.46-47,567.96

Finding the Fourth Proportional to 81,539.72, 112,523.46 and 47,567.96

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Solution

The fourth proportional to 81,539.72, 112,523.46 and 47,567.96 is: 65,643.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,539.72 : 112,523.46 = 47,567.96 : x
  2. Step 2: Convert to fraction form
    81,539.72/112,523.46 = 47,567.96/x
  3. Step 3: Cross multiply
    81,539.72x = 112,523.46 × 47,567.96
  4. Step 4: Simplify right side
    81,539.72x = 5,352,511,444.34
  5. Step 5: Solve for x
    x = 5,352,511,444.34/81,539.72
  6. Step 6: Final answer
    x = 65,643.00

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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.