Home / 55,376.14-76,418.64-31,502.80

Finding the Fourth Proportional to 55,376.14, 76,418.64 and 31,502.80

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Solution

The fourth proportional to 55,376.14, 76,418.64 and 31,502.80 is: 43,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,376.14 : 76,418.64 = 31,502.80 : x
  2. Step 2: Convert to fraction form
    55,376.14/76,418.64 = 31,502.80/x
  3. Step 3: Cross multiply
    55,376.14x = 76,418.64 × 31,502.80
  4. Step 4: Simplify right side
    55,376.14x = 2,407,401,132.19
  5. Step 5: Solve for x
    x = 2,407,401,132.19/55,376.14
  6. Step 6: Final answer
    x = 43,473.62

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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.