Home / 55,513.36-76,609.02-31,639.96

Finding the Fourth Proportional to 55,513.36, 76,609.02 and 31,639.96

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Solution

The fourth proportional to 55,513.36, 76,609.02 and 31,639.96 is: 43,663.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,513.36 : 76,609.02 = 31,639.96 : x
  2. Step 2: Convert to fraction form
    55,513.36/76,609.02 = 31,639.96/x
  3. Step 3: Cross multiply
    55,513.36x = 76,609.02 × 31,639.96
  4. Step 4: Simplify right side
    55,513.36x = 2,423,906,328.44
  5. Step 5: Solve for x
    x = 2,423,906,328.44/55,513.36
  6. Step 6: Final answer
    x = 43,663.48

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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.