Home / 81,272.52-112,165.38-45,471.60

Finding the Fourth Proportional to 81,272.52, 112,165.38 and 45,471.60

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Solution

The fourth proportional to 81,272.52, 112,165.38 and 45,471.60 is: 62,756.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,272.52 : 112,165.38 = 45,471.60 : x
  2. Step 2: Convert to fraction form
    81,272.52/112,165.38 = 45,471.60/x
  3. Step 3: Cross multiply
    81,272.52x = 112,165.38 × 45,471.60
  4. Step 4: Simplify right side
    81,272.52x = 5,100,339,293.21
  5. Step 5: Solve for x
    x = 5,100,339,293.21/81,272.52
  6. Step 6: Final answer
    x = 62,756.01

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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.