Home / 55,178.26-76,146.06-30,975.86

Finding the Fourth Proportional to 55,178.26, 76,146.06 and 30,975.86

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Solution

The fourth proportional to 55,178.26, 76,146.06 and 30,975.86 is: 42,746.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,178.26 : 76,146.06 = 30,975.86 : x
  2. Step 2: Convert to fraction form
    55,178.26/76,146.06 = 30,975.86/x
  3. Step 3: Cross multiply
    55,178.26x = 76,146.06 × 30,975.86
  4. Step 4: Simplify right side
    55,178.26x = 2,358,689,694.11
  5. Step 5: Solve for x
    x = 2,358,689,694.11/55,178.26
  6. Step 6: Final answer
    x = 42,746.72

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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.