Home / 66,864.56-92,269.86-40,021.88

Finding the Fourth Proportional to 66,864.56, 92,269.86 and 40,021.88

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Solution

The fourth proportional to 66,864.56, 92,269.86 and 40,021.88 is: 55,228.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,864.56 : 92,269.86 = 40,021.88 : x
  2. Step 2: Convert to fraction form
    66,864.56/92,269.86 = 40,021.88/x
  3. Step 3: Cross multiply
    66,864.56x = 92,269.86 × 40,021.88
  4. Step 4: Simplify right side
    66,864.56x = 3,692,813,264.54
  5. Step 5: Solve for x
    x = 3,692,813,264.54/66,864.56
  6. Step 6: Final answer
    x = 55,228.26

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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.