Home / 80,687.07-111,339.63-44,871.30

Finding the Fourth Proportional to 80,687.07, 111,339.63 and 44,871.30

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Solution

The fourth proportional to 80,687.07, 111,339.63 and 44,871.30 is: 61,917.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,687.07 : 111,339.63 = 44,871.30 : x
  2. Step 2: Convert to fraction form
    80,687.07/111,339.63 = 44,871.30/x
  3. Step 3: Cross multiply
    80,687.07x = 111,339.63 × 44,871.30
  4. Step 4: Simplify right side
    80,687.07x = 4,995,953,939.62
  5. Step 5: Solve for x
    x = 4,995,953,939.62/80,687.07
  6. Step 6: Final answer
    x = 61,917.65

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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.