Home / 81,549.72-112,537.26-47,577.96

Finding the Fourth Proportional to 81,549.72, 112,537.26 and 47,577.96

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Solution

The fourth proportional to 81,549.72, 112,537.26 and 47,577.96 is: 65,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,549.72 : 112,537.26 = 47,577.96 : x
  2. Step 2: Convert to fraction form
    81,549.72/112,537.26 = 47,577.96/x
  3. Step 3: Cross multiply
    81,549.72x = 112,537.26 × 47,577.96
  4. Step 4: Simplify right side
    81,549.72x = 5,354,293,254.79
  5. Step 5: Solve for x
    x = 5,354,293,254.79/81,549.72
  6. Step 6: Final answer
    x = 65,656.80

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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.