Home / 45,271.67-67,908.89-21,581.81

Finding the Fourth Proportional to 45,271.67, 67,908.89 and 21,581.81

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Solution

The fourth proportional to 45,271.67, 67,908.89 and 21,581.81 is: 32,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,271.67 : 67,908.89 = 21,581.81 : x
  2. Step 2: Convert to fraction form
    45,271.67/67,908.89 = 21,581.81/x
  3. Step 3: Cross multiply
    45,271.67x = 67,908.89 × 21,581.81
  4. Step 4: Simplify right side
    45,271.67x = 1,465,596,761.29
  5. Step 5: Solve for x
    x = 1,465,596,761.29/45,271.67
  6. Step 6: Final answer
    x = 32,373.38

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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.