Home / 80,939.01-111,844.36-77,050.10

Finding the Fourth Proportional to 80,939.01, 111,844.36 and 77,050.10

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Solution

The fourth proportional to 80,939.01, 111,844.36 and 77,050.10 is: 106,470.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,939.01 : 111,844.36 = 77,050.10 : x
  2. Step 2: Convert to fraction form
    80,939.01/111,844.36 = 77,050.10/x
  3. Step 3: Cross multiply
    80,939.01x = 111,844.36 × 77,050.10
  4. Step 4: Simplify right side
    80,939.01x = 8,617,619,498.36
  5. Step 5: Solve for x
    x = 8,617,619,498.36/80,939.01
  6. Step 6: Final answer
    x = 106,470.53

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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.