Home / 43,081.68-64,666.08-30,615.78

Finding the Fourth Proportional to 43,081.68, 64,666.08 and 30,615.78

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Solution

The fourth proportional to 43,081.68, 64,666.08 and 30,615.78 is: 45,954.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,081.68 : 64,666.08 = 30,615.78 : x
  2. Step 2: Convert to fraction form
    43,081.68/64,666.08 = 30,615.78/x
  3. Step 3: Cross multiply
    43,081.68x = 64,666.08 × 30,615.78
  4. Step 4: Simplify right side
    43,081.68x = 1,979,802,478.74
  5. Step 5: Solve for x
    x = 1,979,802,478.74/43,081.68
  6. Step 6: Final answer
    x = 45,954.63

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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.