Home / 55,160.60-76,119.48-31,291.92

Finding the Fourth Proportional to 55,160.60, 76,119.48 and 31,291.92

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Solution

The fourth proportional to 55,160.60, 76,119.48 and 31,291.92 is: 43,181.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,160.60 : 76,119.48 = 31,291.92 : x
  2. Step 2: Convert to fraction form
    55,160.60/76,119.48 = 31,291.92/x
  3. Step 3: Cross multiply
    55,160.60x = 76,119.48 × 31,291.92
  4. Step 4: Simplify right side
    55,160.60x = 2,381,924,678.60
  5. Step 5: Solve for x
    x = 2,381,924,678.60/55,160.60
  6. Step 6: Final answer
    x = 43,181.63

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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.