Home / 45,787.21-63,124.31-39,144.20

Finding the Fourth Proportional to 45,787.21, 63,124.31 and 39,144.20

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Solution

The fourth proportional to 45,787.21, 63,124.31 and 39,144.20 is: 53,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,787.21 : 63,124.31 = 39,144.20 : x
  2. Step 2: Convert to fraction form
    45,787.21/63,124.31 = 39,144.20/x
  3. Step 3: Cross multiply
    45,787.21x = 63,124.31 × 39,144.20
  4. Step 4: Simplify right side
    45,787.21x = 2,470,950,397.74
  5. Step 5: Solve for x
    x = 2,470,950,397.74/45,787.21
  6. Step 6: Final answer
    x = 53,965.96

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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.