Home / 45,235.45-67,820.37-30,407.59

Finding the Fourth Proportional to 45,235.45, 67,820.37 and 30,407.59

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Solution

The fourth proportional to 45,235.45, 67,820.37 and 30,407.59 is: 45,589.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,235.45 : 67,820.37 = 30,407.59 : x
  2. Step 2: Convert to fraction form
    45,235.45/67,820.37 = 30,407.59/x
  3. Step 3: Cross multiply
    45,235.45x = 67,820.37 × 30,407.59
  4. Step 4: Simplify right side
    45,235.45x = 2,062,254,004.61
  5. Step 5: Solve for x
    x = 2,062,254,004.61/45,235.45
  6. Step 6: Final answer
    x = 45,589.33

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1.5x scale

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.