Home / 70,619.54-105,945.60-20,703.48

Finding the Fourth Proportional to 70,619.54, 105,945.60 and 20,703.48

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Solution

The fourth proportional to 70,619.54, 105,945.60 and 20,703.48 is: 31,060.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,619.54 : 105,945.60 = 20,703.48 : x
  2. Step 2: Convert to fraction form
    70,619.54/105,945.60 = 20,703.48/x
  3. Step 3: Cross multiply
    70,619.54x = 105,945.60 × 20,703.48
  4. Step 4: Simplify right side
    70,619.54x = 2,193,442,610.69
  5. Step 5: Solve for x
    x = 2,193,442,610.69/70,619.54
  6. Step 6: Final answer
    x = 31,060.00

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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.