Home / 98,729.92-148,004.01-53,685.46

Finding the Fourth Proportional to 98,729.92, 148,004.01 and 53,685.46

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Solution

The fourth proportional to 98,729.92, 148,004.01 and 53,685.46 is: 80,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,729.92 : 148,004.01 = 53,685.46 : x
  2. Step 2: Convert to fraction form
    98,729.92/148,004.01 = 53,685.46/x
  3. Step 3: Cross multiply
    98,729.92x = 148,004.01 × 53,685.46
  4. Step 4: Simplify right side
    98,729.92x = 7,945,663,862.92
  5. Step 5: Solve for x
    x = 7,945,663,862.92/98,729.92
  6. Step 6: Final answer
    x = 80,478.79

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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.