Home / 81,771.35-112,847.66-45,961.25

Finding the Fourth Proportional to 81,771.35, 112,847.66 and 45,961.25

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Solution

The fourth proportional to 81,771.35, 112,847.66 and 45,961.25 is: 63,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,771.35 : 112,847.66 = 45,961.25 : x
  2. Step 2: Convert to fraction form
    81,771.35/112,847.66 = 45,961.25/x
  3. Step 3: Cross multiply
    81,771.35x = 112,847.66 × 45,961.25
  4. Step 4: Simplify right side
    81,771.35x = 5,186,618,719.13
  5. Step 5: Solve for x
    x = 5,186,618,719.13/81,771.35
  6. Step 6: Final answer
    x = 63,428.32

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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.