Home / 82,107.58-113,265.43-71,328.25

Finding the Fourth Proportional to 82,107.58, 113,265.43 and 71,328.25

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Solution

The fourth proportional to 82,107.58, 113,265.43 and 71,328.25 is: 98,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,107.58 : 113,265.43 = 71,328.25 : x
  2. Step 2: Convert to fraction form
    82,107.58/113,265.43 = 71,328.25/x
  3. Step 3: Cross multiply
    82,107.58x = 113,265.43 × 71,328.25
  4. Step 4: Simplify right side
    82,107.58x = 8,079,024,907.40
  5. Step 5: Solve for x
    x = 8,079,024,907.40/82,107.58
  6. Step 6: Final answer
    x = 98,395.60

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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.