Home / 45,732.87-68,488.65-31,653.45

Finding the Fourth Proportional to 45,732.87, 68,488.65 and 31,653.45

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Solution

The fourth proportional to 45,732.87, 68,488.65 and 31,653.45 is: 47,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,732.87 : 68,488.65 = 31,653.45 : x
  2. Step 2: Convert to fraction form
    45,732.87/68,488.65 = 31,653.45/x
  3. Step 3: Cross multiply
    45,732.87x = 68,488.65 × 31,653.45
  4. Step 4: Simplify right side
    45,732.87x = 2,167,902,058.34
  5. Step 5: Solve for x
    x = 2,167,902,058.34/45,732.87
  6. Step 6: Final answer
    x = 47,403.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.