Home / 82,408.12-113,684.78-53,345.88

Finding the Fourth Proportional to 82,408.12, 113,684.78 and 53,345.88

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Solution

The fourth proportional to 82,408.12, 113,684.78 and 53,345.88 is: 73,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,408.12 : 113,684.78 = 53,345.88 : x
  2. Step 2: Convert to fraction form
    82,408.12/113,684.78 = 53,345.88/x
  3. Step 3: Cross multiply
    82,408.12x = 113,684.78 × 53,345.88
  4. Step 4: Simplify right side
    82,408.12x = 6,064,615,099.56
  5. Step 5: Solve for x
    x = 6,064,615,099.56/82,408.12
  6. Step 6: Final answer
    x = 73,592.45

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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.