Home / 55,294.08-76,304.64-30,143.04

Finding the Fourth Proportional to 55,294.08, 76,304.64 and 30,143.04

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Solution

The fourth proportional to 55,294.08, 76,304.64 and 30,143.04 is: 41,596.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,294.08 : 76,304.64 = 30,143.04 : x
  2. Step 2: Convert to fraction form
    55,294.08/76,304.64 = 30,143.04/x
  3. Step 3: Cross multiply
    55,294.08x = 76,304.64 × 30,143.04
  4. Step 4: Simplify right side
    55,294.08x = 2,300,053,815.71
  5. Step 5: Solve for x
    x = 2,300,053,815.71/55,294.08
  6. Step 6: Final answer
    x = 41,596.75

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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.