Home / 89,865.24-134,821.74-30,700.80

Finding the Fourth Proportional to 89,865.24, 134,821.74 and 30,700.80

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Solution

The fourth proportional to 89,865.24, 134,821.74 and 30,700.80 is: 46,059.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,865.24 : 134,821.74 = 30,700.80 : x
  2. Step 2: Convert to fraction form
    89,865.24/134,821.74 = 30,700.80/x
  3. Step 3: Cross multiply
    89,865.24x = 134,821.74 × 30,700.80
  4. Step 4: Simplify right side
    89,865.24x = 4,139,135,275.39
  5. Step 5: Solve for x
    x = 4,139,135,275.39/89,865.24
  6. Step 6: Final answer
    x = 46,059.36

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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.