Home / 87,829.60-121,181.52-50,103.04

Finding the Fourth Proportional to 87,829.60, 121,181.52 and 50,103.04

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Solution

The fourth proportional to 87,829.60, 121,181.52 and 50,103.04 is: 69,128.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,829.60 : 121,181.52 = 50,103.04 : x
  2. Step 2: Convert to fraction form
    87,829.60/121,181.52 = 50,103.04/x
  3. Step 3: Cross multiply
    87,829.60x = 121,181.52 × 50,103.04
  4. Step 4: Simplify right side
    87,829.60x = 6,071,562,543.82
  5. Step 5: Solve for x
    x = 6,071,562,543.82/87,829.60
  6. Step 6: Final answer
    x = 69,128.89

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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.