Home / 80,908.34-121,251.67-51,346.91

Finding the Fourth Proportional to 80,908.34, 121,251.67 and 51,346.91

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Solution

The fourth proportional to 80,908.34, 121,251.67 and 51,346.91 is: 76,950.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,908.34 : 121,251.67 = 51,346.91 : x
  2. Step 2: Convert to fraction form
    80,908.34/121,251.67 = 51,346.91/x
  3. Step 3: Cross multiply
    80,908.34x = 121,251.67 × 51,346.91
  4. Step 4: Simplify right side
    80,908.34x = 6,225,898,761.60
  5. Step 5: Solve for x
    x = 6,225,898,761.60/80,908.34
  6. Step 6: Final answer
    x = 76,950.03

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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.