Home / 84,283.55-126,382.99-28,103.77

Finding the Fourth Proportional to 84,283.55, 126,382.99 and 28,103.77

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Solution

The fourth proportional to 84,283.55, 126,382.99 and 28,103.77 is: 42,141.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,283.55 : 126,382.99 = 28,103.77 : x
  2. Step 2: Convert to fraction form
    84,283.55/126,382.99 = 28,103.77/x
  3. Step 3: Cross multiply
    84,283.55x = 126,382.99 × 28,103.77
  4. Step 4: Simplify right side
    84,283.55x = 3,551,838,482.87
  5. Step 5: Solve for x
    x = 3,551,838,482.87/84,283.55
  6. Step 6: Final answer
    x = 42,141.54

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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.