Home / 81,345.65-112,261.97-45,537.89

Finding the Fourth Proportional to 81,345.65, 112,261.97 and 45,537.89

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Solution

The fourth proportional to 81,345.65, 112,261.97 and 45,537.89 is: 62,845.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,345.65 : 112,261.97 = 45,537.89 : x
  2. Step 2: Convert to fraction form
    81,345.65/112,261.97 = 45,537.89/x
  3. Step 3: Cross multiply
    81,345.65x = 112,261.97 × 45,537.89
  4. Step 4: Simplify right side
    81,345.65x = 5,112,172,793.58
  5. Step 5: Solve for x
    x = 5,112,172,793.58/81,345.65
  6. Step 6: Final answer
    x = 62,845.07

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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.