Home / 80,917.02-121,291.30-45,326.16

Finding the Fourth Proportional to 80,917.02, 121,291.30 and 45,326.16

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Solution

The fourth proportional to 80,917.02, 121,291.30 and 45,326.16 is: 67,942.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,917.02 : 121,291.30 = 45,326.16 : x
  2. Step 2: Convert to fraction form
    80,917.02/121,291.30 = 45,326.16/x
  3. Step 3: Cross multiply
    80,917.02x = 121,291.30 × 45,326.16
  4. Step 4: Simplify right side
    80,917.02x = 5,497,668,870.41
  5. Step 5: Solve for x
    x = 5,497,668,870.41/80,917.02
  6. Step 6: Final answer
    x = 67,942.06

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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.