Home / 81,344.52-112,259.70-51,118.65

Finding the Fourth Proportional to 81,344.52, 112,259.70 and 51,118.65

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Solution

The fourth proportional to 81,344.52, 112,259.70 and 51,118.65 is: 70,546.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,344.52 : 112,259.70 = 51,118.65 : x
  2. Step 2: Convert to fraction form
    81,344.52/112,259.70 = 51,118.65/x
  3. Step 3: Cross multiply
    81,344.52x = 112,259.70 × 51,118.65
  4. Step 4: Simplify right side
    81,344.52x = 5,738,564,313.41
  5. Step 5: Solve for x
    x = 5,738,564,313.41/81,344.52
  6. Step 6: Final answer
    x = 70,546.42

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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.