Home / 55,620.30-76,756.08-30,126.72

Finding the Fourth Proportional to 55,620.30, 76,756.08 and 30,126.72

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Solution

The fourth proportional to 55,620.30, 76,756.08 and 30,126.72 is: 41,574.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,620.30 : 76,756.08 = 30,126.72 : x
  2. Step 2: Convert to fraction form
    55,620.30/76,756.08 = 30,126.72/x
  3. Step 3: Cross multiply
    55,620.30x = 76,756.08 × 30,126.72
  4. Step 4: Simplify right side
    55,620.30x = 2,312,408,930.46
  5. Step 5: Solve for x
    x = 2,312,408,930.46/55,620.30
  6. Step 6: Final answer
    x = 41,574.91

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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.