Home / 81,766.50-112,832.16-45,961.89

Finding the Fourth Proportional to 81,766.50, 112,832.16 and 45,961.89

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Solution

The fourth proportional to 81,766.50, 112,832.16 and 45,961.89 is: 63,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,766.50 : 112,832.16 = 45,961.89 : x
  2. Step 2: Convert to fraction form
    81,766.50/112,832.16 = 45,961.89/x
  3. Step 3: Cross multiply
    81,766.50x = 112,832.16 × 45,961.89
  4. Step 4: Simplify right side
    81,766.50x = 5,185,979,326.38
  5. Step 5: Solve for x
    x = 5,185,979,326.38/81,766.50
  6. Step 6: Final answer
    x = 63,424.25

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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.