Home / 55,290.56-76,304.64-31,417.28

Finding the Fourth Proportional to 55,290.56, 76,304.64 and 31,417.28

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Solution

The fourth proportional to 55,290.56, 76,304.64 and 31,417.28 is: 43,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,290.56 : 76,304.64 = 31,417.28 : x
  2. Step 2: Convert to fraction form
    55,290.56/76,304.64 = 31,417.28/x
  3. Step 3: Cross multiply
    55,290.56x = 76,304.64 × 31,417.28
  4. Step 4: Simplify right side
    55,290.56x = 2,397,284,240.18
  5. Step 5: Solve for x
    x = 2,397,284,240.18/55,290.56
  6. Step 6: Final answer
    x = 43,357.93

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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.