Home / 296,687.12-445,026.08-72,049.28

Finding the Fourth Proportional to 296,687.12, 445,026.08 and 72,049.28

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Solution

The fourth proportional to 296,687.12, 445,026.08 and 72,049.28 is: 108,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,687.12 : 445,026.08 = 72,049.28 : x
  2. Step 2: Convert to fraction form
    296,687.12/445,026.08 = 72,049.28/x
  3. Step 3: Cross multiply
    296,687.12x = 445,026.08 × 72,049.28
  4. Step 4: Simplify right side
    296,687.12x = 32,063,808,645.22
  5. Step 5: Solve for x
    x = 32,063,808,645.22/296,687.12
  6. Step 6: Final answer
    x = 108,072.80

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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.