Home / 69,390.54-95,760.23-40,730.72

Finding the Fourth Proportional to 69,390.54, 95,760.23 and 40,730.72

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Solution

The fourth proportional to 69,390.54, 95,760.23 and 40,730.72 is: 56,209.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,390.54 : 95,760.23 = 40,730.72 : x
  2. Step 2: Convert to fraction form
    69,390.54/95,760.23 = 40,730.72/x
  3. Step 3: Cross multiply
    69,390.54x = 95,760.23 × 40,730.72
  4. Step 4: Simplify right side
    69,390.54x = 3,900,382,432.81
  5. Step 5: Solve for x
    x = 3,900,382,432.81/69,390.54
  6. Step 6: Final answer
    x = 56,209.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.