Home / 53,917.76-80,778.09-39,089.90

Finding the Fourth Proportional to 53,917.76, 80,778.09 and 39,089.90

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Solution

The fourth proportional to 53,917.76, 80,778.09 and 39,089.90 is: 58,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,917.76 : 80,778.09 = 39,089.90 : x
  2. Step 2: Convert to fraction form
    53,917.76/80,778.09 = 39,089.90/x
  3. Step 3: Cross multiply
    53,917.76x = 80,778.09 × 39,089.90
  4. Step 4: Simplify right side
    53,917.76x = 3,157,607,460.29
  5. Step 5: Solve for x
    x = 3,157,607,460.29/53,917.76
  6. Step 6: Final answer
    x = 58,563.40

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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.