Home / 82,419.96-113,755.68-53,775.12

Finding the Fourth Proportional to 82,419.96, 113,755.68 and 53,775.12

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Solution

The fourth proportional to 82,419.96, 113,755.68 and 53,775.12 is: 74,220.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,419.96 : 113,755.68 = 53,775.12 : x
  2. Step 2: Convert to fraction form
    82,419.96/113,755.68 = 53,775.12/x
  3. Step 3: Cross multiply
    82,419.96x = 113,755.68 × 53,775.12
  4. Step 4: Simplify right side
    82,419.96x = 6,117,225,342.68
  5. Step 5: Solve for x
    x = 6,117,225,342.68/82,419.96
  6. Step 6: Final answer
    x = 74,220.19

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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.