Home / 81,570.74-112,556.85-45,759.38

Finding the Fourth Proportional to 81,570.74, 112,556.85 and 45,759.38

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Solution

The fourth proportional to 81,570.74, 112,556.85 and 45,759.38 is: 63,141.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,570.74 : 112,556.85 = 45,759.38 : x
  2. Step 2: Convert to fraction form
    81,570.74/112,556.85 = 45,759.38/x
  3. Step 3: Cross multiply
    81,570.74x = 112,556.85 × 45,759.38
  4. Step 4: Simplify right side
    81,570.74x = 5,150,531,670.75
  5. Step 5: Solve for x
    x = 5,150,531,670.75/81,570.74
  6. Step 6: Final answer
    x = 63,141.90

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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.