Home / 98,063.76-135,356.97-57,790.50

Finding the Fourth Proportional to 98,063.76, 135,356.97 and 57,790.50

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Solution

The fourth proportional to 98,063.76, 135,356.97 and 57,790.50 is: 79,767.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,063.76 : 135,356.97 = 57,790.50 : x
  2. Step 2: Convert to fraction form
    98,063.76/135,356.97 = 57,790.50/x
  3. Step 3: Cross multiply
    98,063.76x = 135,356.97 × 57,790.50
  4. Step 4: Simplify right side
    98,063.76x = 7,822,346,974.79
  5. Step 5: Solve for x
    x = 7,822,346,974.79/98,063.76
  6. Step 6: Final answer
    x = 79,767.97

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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.