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Finding the Fourth Proportional to 84,485.61, 126,710.06 and 25,305.39

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Solution

The fourth proportional to 84,485.61, 126,710.06 and 25,305.39 is: 37,952.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,485.61 : 126,710.06 = 25,305.39 : x
  2. Step 2: Convert to fraction form
    84,485.61/126,710.06 = 25,305.39/x
  3. Step 3: Cross multiply
    84,485.61x = 126,710.06 × 25,305.39
  4. Step 4: Simplify right side
    84,485.61x = 3,206,447,358.70
  5. Step 5: Solve for x
    x = 3,206,447,358.70/84,485.61
  6. Step 6: Final answer
    x = 37,952.59

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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.