Home / 81,651.11-112,675.64-45,842.63

Finding the Fourth Proportional to 81,651.11, 112,675.64 and 45,842.63

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Solution

The fourth proportional to 81,651.11, 112,675.64 and 45,842.63 is: 63,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,651.11 : 112,675.64 = 45,842.63 : x
  2. Step 2: Convert to fraction form
    81,651.11/112,675.64 = 45,842.63/x
  3. Step 3: Cross multiply
    81,651.11x = 112,675.64 × 45,842.63
  4. Step 4: Simplify right side
    81,651.11x = 5,165,348,283.91
  5. Step 5: Solve for x
    x = 5,165,348,283.91/81,651.11
  6. Step 6: Final answer
    x = 63,261.21

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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.