Home / 55,178.93-76,141.66-30,974.35

Finding the Fourth Proportional to 55,178.93, 76,141.66 and 30,974.35

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Solution

The fourth proportional to 55,178.93, 76,141.66 and 30,974.35 is: 42,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,178.93 : 76,141.66 = 30,974.35 : x
  2. Step 2: Convert to fraction form
    55,178.93/76,141.66 = 30,974.35/x
  3. Step 3: Cross multiply
    55,178.93x = 76,141.66 × 30,974.35
  4. Step 4: Simplify right side
    55,178.93x = 2,358,438,158.63
  5. Step 5: Solve for x
    x = 2,358,438,158.63/55,178.93
  6. Step 6: Final answer
    x = 42,741.64

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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.