Home / 89,868.97-134,819.31-30,690.77

Finding the Fourth Proportional to 89,868.97, 134,819.31 and 30,690.77

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Solution

The fourth proportional to 89,868.97, 134,819.31 and 30,690.77 is: 46,041.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,868.97 : 134,819.31 = 30,690.77 : x
  2. Step 2: Convert to fraction form
    89,868.97/134,819.31 = 30,690.77/x
  3. Step 3: Cross multiply
    89,868.97x = 134,819.31 × 30,690.77
  4. Step 4: Simplify right side
    89,868.97x = 4,137,708,434.77
  5. Step 5: Solve for x
    x = 4,137,708,434.77/89,868.97
  6. Step 6: Final answer
    x = 46,041.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.