Home / 53,390.68-73,682.30-30,729.17

Finding the Fourth Proportional to 53,390.68, 73,682.30 and 30,729.17

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Solution

The fourth proportional to 53,390.68, 73,682.30 and 30,729.17 is: 42,408.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,390.68 : 73,682.30 = 30,729.17 : x
  2. Step 2: Convert to fraction form
    53,390.68/73,682.30 = 30,729.17/x
  3. Step 3: Cross multiply
    53,390.68x = 73,682.30 × 30,729.17
  4. Step 4: Simplify right side
    53,390.68x = 2,264,196,183.72
  5. Step 5: Solve for x
    x = 2,264,196,183.72/53,390.68
  6. Step 6: Final answer
    x = 42,408.08

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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.