Home / 98,529.28-147,828.48-51,121.60

Finding the Fourth Proportional to 98,529.28, 147,828.48 and 51,121.60

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Solution

The fourth proportional to 98,529.28, 147,828.48 and 51,121.60 is: 76,700.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,529.28 : 147,828.48 = 51,121.60 : x
  2. Step 2: Convert to fraction form
    98,529.28/147,828.48 = 51,121.60/x
  3. Step 3: Cross multiply
    98,529.28x = 147,828.48 × 51,121.60
  4. Step 4: Simplify right side
    98,529.28x = 7,557,228,423.17
  5. Step 5: Solve for x
    x = 7,557,228,423.17/98,529.28
  6. Step 6: Final answer
    x = 76,700.33

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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.