Home / 81,548.39-112,622.30-56,120.41

Finding the Fourth Proportional to 81,548.39, 112,622.30 and 56,120.41

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Solution

The fourth proportional to 81,548.39, 112,622.30 and 56,120.41 is: 77,505.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,548.39 : 112,622.30 = 56,120.41 : x
  2. Step 2: Convert to fraction form
    81,548.39/112,622.30 = 56,120.41/x
  3. Step 3: Cross multiply
    81,548.39x = 112,622.30 × 56,120.41
  4. Step 4: Simplify right side
    81,548.39x = 6,320,409,959.33
  5. Step 5: Solve for x
    x = 6,320,409,959.33/81,548.39
  6. Step 6: Final answer
    x = 77,505.03

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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.