Home / 63,042.15-87,012.99-39,186.84

Finding the Fourth Proportional to 63,042.15, 87,012.99 and 39,186.84

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Solution

The fourth proportional to 63,042.15, 87,012.99 and 39,186.84 is: 54,087.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,042.15 : 87,012.99 = 39,186.84 : x
  2. Step 2: Convert to fraction form
    63,042.15/87,012.99 = 39,186.84/x
  3. Step 3: Cross multiply
    63,042.15x = 87,012.99 × 39,186.84
  4. Step 4: Simplify right side
    63,042.15x = 3,409,764,117.05
  5. Step 5: Solve for x
    x = 3,409,764,117.05/63,042.15
  6. Step 6: Final answer
    x = 54,087.05

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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.