Home / 81,265.14-112,145.31-47,274.30

Finding the Fourth Proportional to 81,265.14, 112,145.31 and 47,274.30

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Solution

The fourth proportional to 81,265.14, 112,145.31 and 47,274.30 is: 65,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,265.14 : 112,145.31 = 47,274.30 : x
  2. Step 2: Convert to fraction form
    81,265.14/112,145.31 = 47,274.30/x
  3. Step 3: Cross multiply
    81,265.14x = 112,145.31 × 47,274.30
  4. Step 4: Simplify right side
    81,265.14x = 5,301,591,028.53
  5. Step 5: Solve for x
    x = 5,301,591,028.53/81,265.14
  6. Step 6: Final answer
    x = 65,238.19

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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.