Home / 98,928.64-148,399.76-39,764.36

Finding the Fourth Proportional to 98,928.64, 148,399.76 and 39,764.36

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Solution

The fourth proportional to 98,928.64, 148,399.76 and 39,764.36 is: 59,649.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,928.64 : 148,399.76 = 39,764.36 : x
  2. Step 2: Convert to fraction form
    98,928.64/148,399.76 = 39,764.36/x
  3. Step 3: Cross multiply
    98,928.64x = 148,399.76 × 39,764.36
  4. Step 4: Simplify right side
    98,928.64x = 5,901,021,480.55
  5. Step 5: Solve for x
    x = 5,901,021,480.55/98,928.64
  6. Step 6: Final answer
    x = 59,649.27

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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.