Home / 65,812.30-90,795.13-38,945.00

Finding the Fourth Proportional to 65,812.30, 90,795.13 and 38,945.00

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Solution

The fourth proportional to 65,812.30, 90,795.13 and 38,945.00 is: 53,728.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,812.30 : 90,795.13 = 38,945.00 : x
  2. Step 2: Convert to fraction form
    65,812.30/90,795.13 = 38,945.00/x
  3. Step 3: Cross multiply
    65,812.30x = 90,795.13 × 38,945.00
  4. Step 4: Simplify right side
    65,812.30x = 3,536,016,467.48
  5. Step 5: Solve for x
    x = 3,536,016,467.48/65,812.30
  6. Step 6: Final answer
    x = 53,728.81

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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.