Home / 98,879.82-148,319.64-39,715.50

Finding the Fourth Proportional to 98,879.82, 148,319.64 and 39,715.50

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Solution

The fourth proportional to 98,879.82, 148,319.64 and 39,715.50 is: 59,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,879.82 : 148,319.64 = 39,715.50 : x
  2. Step 2: Convert to fraction form
    98,879.82/148,319.64 = 39,715.50/x
  3. Step 3: Cross multiply
    98,879.82x = 148,319.64 × 39,715.50
  4. Step 4: Simplify right side
    98,879.82x = 5,890,588,662.42
  5. Step 5: Solve for x
    x = 5,890,588,662.42/98,879.82
  6. Step 6: Final answer
    x = 59,573.21

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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.