Home / 80,925.66-121,389.60-31,008.27

Finding the Fourth Proportional to 80,925.66, 121,389.60 and 31,008.27

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Solution

The fourth proportional to 80,925.66, 121,389.60 and 31,008.27 is: 46,512.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,925.66 : 121,389.60 = 31,008.27 : x
  2. Step 2: Convert to fraction form
    80,925.66/121,389.60 = 31,008.27/x
  3. Step 3: Cross multiply
    80,925.66x = 121,389.60 × 31,008.27
  4. Step 4: Simplify right side
    80,925.66x = 3,764,081,491.99
  5. Step 5: Solve for x
    x = 3,764,081,491.99/80,925.66
  6. Step 6: Final answer
    x = 46,512.83

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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.