Home / 100,050.24-138,068.34-54,727.80

Finding the Fourth Proportional to 100,050.24, 138,068.34 and 54,727.80

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Solution

The fourth proportional to 100,050.24, 138,068.34 and 54,727.80 is: 75,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,050.24 : 138,068.34 = 54,727.80 : x
  2. Step 2: Convert to fraction form
    100,050.24/138,068.34 = 54,727.80/x
  3. Step 3: Cross multiply
    100,050.24x = 138,068.34 × 54,727.80
  4. Step 4: Simplify right side
    100,050.24x = 7,556,176,497.85
  5. Step 5: Solve for x
    x = 7,556,176,497.85/100,050.24
  6. Step 6: Final answer
    x = 75,523.82

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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.