Home / 58,223.90-87,354.31-20,783.15

Finding the Fourth Proportional to 58,223.90, 87,354.31 and 20,783.15

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Solution

The fourth proportional to 58,223.90, 87,354.31 and 20,783.15 is: 31,181.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,223.90 : 87,354.31 = 20,783.15 : x
  2. Step 2: Convert to fraction form
    58,223.90/87,354.31 = 20,783.15/x
  3. Step 3: Cross multiply
    58,223.90x = 87,354.31 × 20,783.15
  4. Step 4: Simplify right side
    58,223.90x = 1,815,497,727.88
  5. Step 5: Solve for x
    x = 1,815,497,727.88/58,223.90
  6. Step 6: Final answer
    x = 31,181.31

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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.