Home / 55,178.59-76,141.19-30,974.01

Finding the Fourth Proportional to 55,178.59, 76,141.19 and 30,974.01

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Solution

The fourth proportional to 55,178.59, 76,141.19 and 30,974.01 is: 42,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,178.59 : 76,141.19 = 30,974.01 : x
  2. Step 2: Convert to fraction form
    55,178.59/76,141.19 = 30,974.01/x
  3. Step 3: Cross multiply
    55,178.59x = 76,141.19 × 30,974.01
  4. Step 4: Simplify right side
    55,178.59x = 2,358,397,825.60
  5. Step 5: Solve for x
    x = 2,358,397,825.60/55,178.59
  6. Step 6: Final answer
    x = 42,741.18

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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.