Home / 89,386.20-134,039.70-30,205.80

Finding the Fourth Proportional to 89,386.20, 134,039.70 and 30,205.80

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Solution

The fourth proportional to 89,386.20, 134,039.70 and 30,205.80 is: 45,295.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,386.20 : 134,039.70 = 30,205.80 : x
  2. Step 2: Convert to fraction form
    89,386.20/134,039.70 = 30,205.80/x
  3. Step 3: Cross multiply
    89,386.20x = 134,039.70 × 30,205.80
  4. Step 4: Simplify right side
    89,386.20x = 4,048,776,370.26
  5. Step 5: Solve for x
    x = 4,048,776,370.26/89,386.20
  6. Step 6: Final answer
    x = 45,295.32

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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.