Home / 55,412.89-76,472.73-31,547.25

Finding the Fourth Proportional to 55,412.89, 76,472.73 and 31,547.25

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Solution

The fourth proportional to 55,412.89, 76,472.73 and 31,547.25 is: 43,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,412.89 : 76,472.73 = 31,547.25 : x
  2. Step 2: Convert to fraction form
    55,412.89/76,472.73 = 31,547.25/x
  3. Step 3: Cross multiply
    55,412.89x = 76,472.73 × 31,547.25
  4. Step 4: Simplify right side
    55,412.89x = 2,412,504,331.49
  5. Step 5: Solve for x
    x = 2,412,504,331.49/55,412.89
  6. Step 6: Final answer
    x = 43,536.88

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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.