Home / 70,121.86-105,104.88-53,426.85

Finding the Fourth Proportional to 70,121.86, 105,104.88 and 53,426.85

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Solution

The fourth proportional to 70,121.86, 105,104.88 and 53,426.85 is: 80,080.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,121.86 : 105,104.88 = 53,426.85 : x
  2. Step 2: Convert to fraction form
    70,121.86/105,104.88 = 53,426.85/x
  3. Step 3: Cross multiply
    70,121.86x = 105,104.88 × 53,426.85
  4. Step 4: Simplify right side
    70,121.86x = 5,615,422,658.03
  5. Step 5: Solve for x
    x = 5,615,422,658.03/70,121.86
  6. Step 6: Final answer
    x = 80,080.91

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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.