Home / 81,235.58-112,115.54-45,427.60

Finding the Fourth Proportional to 81,235.58, 112,115.54 and 45,427.60

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Solution

The fourth proportional to 81,235.58, 112,115.54 and 45,427.60 is: 62,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,235.58 : 112,115.54 = 45,427.60 : x
  2. Step 2: Convert to fraction form
    81,235.58/112,115.54 = 45,427.60/x
  3. Step 3: Cross multiply
    81,235.58x = 112,115.54 × 45,427.60
  4. Step 4: Simplify right side
    81,235.58x = 5,093,139,738.18
  5. Step 5: Solve for x
    x = 5,093,139,738.18/81,235.58
  6. Step 6: Final answer
    x = 62,695.92

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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.