Home / 45,141.04-67,717.86-18,839.76

Finding the Fourth Proportional to 45,141.04, 67,717.86 and 18,839.76

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Solution

The fourth proportional to 45,141.04, 67,717.86 and 18,839.76 is: 28,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,141.04 : 67,717.86 = 18,839.76 : x
  2. Step 2: Convert to fraction form
    45,141.04/67,717.86 = 18,839.76/x
  3. Step 3: Cross multiply
    45,141.04x = 67,717.86 × 18,839.76
  4. Step 4: Simplify right side
    45,141.04x = 1,275,788,230.11
  5. Step 5: Solve for x
    x = 1,275,788,230.11/45,141.04
  6. Step 6: Final answer
    x = 28,262.27

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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.