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Finding the Fourth Proportional to 80,424.83, 120,698.84 and 57,924.71

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Solution

The fourth proportional to 80,424.83, 120,698.84 and 57,924.71 is: 86,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,424.83 : 120,698.84 = 57,924.71 : x
  2. Step 2: Convert to fraction form
    80,424.83/120,698.84 = 57,924.71/x
  3. Step 3: Cross multiply
    80,424.83x = 120,698.84 × 57,924.71
  4. Step 4: Simplify right side
    80,424.83x = 6,991,444,519.83
  5. Step 5: Solve for x
    x = 6,991,444,519.83/80,424.83
  6. Step 6: Final answer
    x = 86,931.41

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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.