Home / 53,409.03-73,704.34-30,739.75

Finding the Fourth Proportional to 53,409.03, 73,704.34 and 30,739.75

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Solution

The fourth proportional to 53,409.03, 73,704.34 and 30,739.75 is: 42,420.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,409.03 : 73,704.34 = 30,739.75 : x
  2. Step 2: Convert to fraction form
    53,409.03/73,704.34 = 30,739.75/x
  3. Step 3: Cross multiply
    53,409.03x = 73,704.34 × 30,739.75
  4. Step 4: Simplify right side
    53,409.03x = 2,265,652,985.52
  5. Step 5: Solve for x
    x = 2,265,652,985.52/53,409.03
  6. Step 6: Final answer
    x = 42,420.79

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1.5x scale

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.