Home / 81,272.40-112,160.86-45,464.82

Finding the Fourth Proportional to 81,272.40, 112,160.86 and 45,464.82

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Solution

The fourth proportional to 81,272.40, 112,160.86 and 45,464.82 is: 62,744.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,272.40 : 112,160.86 = 45,464.82 : x
  2. Step 2: Convert to fraction form
    81,272.40/112,160.86 = 45,464.82/x
  3. Step 3: Cross multiply
    81,272.40x = 112,160.86 × 45,464.82
  4. Step 4: Simplify right side
    81,272.40x = 5,099,373,310.95
  5. Step 5: Solve for x
    x = 5,099,373,310.95/81,272.40
  6. Step 6: Final answer
    x = 62,744.22

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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.