Home / 81,360.68-112,272.42-45,550.36

Finding the Fourth Proportional to 81,360.68, 112,272.42 and 45,550.36

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Solution

The fourth proportional to 81,360.68, 112,272.42 and 45,550.36 is: 62,856.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,360.68 : 112,272.42 = 45,550.36 : x
  2. Step 2: Convert to fraction form
    81,360.68/112,272.42 = 45,550.36/x
  3. Step 3: Cross multiply
    81,360.68x = 112,272.42 × 45,550.36
  4. Step 4: Simplify right side
    81,360.68x = 5,114,049,149.07
  5. Step 5: Solve for x
    x = 5,114,049,149.07/81,360.68
  6. Step 6: Final answer
    x = 62,856.52

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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.