Home / 40,865.40-61,328.52-30,359.88

Finding the Fourth Proportional to 40,865.40, 61,328.52 and 30,359.88

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Solution

The fourth proportional to 40,865.40, 61,328.52 and 30,359.88 is: 45,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,865.40 : 61,328.52 = 30,359.88 : x
  2. Step 2: Convert to fraction form
    40,865.40/61,328.52 = 30,359.88/x
  3. Step 3: Cross multiply
    40,865.40x = 61,328.52 × 30,359.88
  4. Step 4: Simplify right side
    40,865.40x = 1,861,926,507.78
  5. Step 5: Solve for x
    x = 1,861,926,507.78/40,865.40
  6. Step 6: Final answer
    x = 45,562.42

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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.