Home / 84,100.45-126,150.68-57,725.23

Finding the Fourth Proportional to 84,100.45, 126,150.68 and 57,725.23

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Solution

The fourth proportional to 84,100.45, 126,150.68 and 57,725.23 is: 86,587.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,100.45 : 126,150.68 = 57,725.23 : x
  2. Step 2: Convert to fraction form
    84,100.45/126,150.68 = 57,725.23/x
  3. Step 3: Cross multiply
    84,100.45x = 126,150.68 × 57,725.23
  4. Step 4: Simplify right side
    84,100.45x = 7,282,077,017.66
  5. Step 5: Solve for x
    x = 7,282,077,017.66/84,100.45
  6. Step 6: Final answer
    x = 86,587.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.