Home / 69,878.26-96,432.69-40,064.50

Finding the Fourth Proportional to 69,878.26, 96,432.69 and 40,064.50

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Solution

The fourth proportional to 69,878.26, 96,432.69 and 40,064.50 is: 55,289.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,878.26 : 96,432.69 = 40,064.50 : x
  2. Step 2: Convert to fraction form
    69,878.26/96,432.69 = 40,064.50/x
  3. Step 3: Cross multiply
    69,878.26x = 96,432.69 × 40,064.50
  4. Step 4: Simplify right side
    69,878.26x = 3,863,527,508.51
  5. Step 5: Solve for x
    x = 3,863,527,508.51/69,878.26
  6. Step 6: Final answer
    x = 55,289.41

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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.