Home / 66,987.28-92,436.66-36,772.50

Finding the Fourth Proportional to 66,987.28, 92,436.66 and 36,772.50

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Solution

The fourth proportional to 66,987.28, 92,436.66 and 36,772.50 is: 50,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,987.28 : 92,436.66 = 36,772.50 : x
  2. Step 2: Convert to fraction form
    66,987.28/92,436.66 = 36,772.50/x
  3. Step 3: Cross multiply
    66,987.28x = 92,436.66 × 36,772.50
  4. Step 4: Simplify right side
    66,987.28x = 3,399,127,079.85
  5. Step 5: Solve for x
    x = 3,399,127,079.85/66,987.28
  6. Step 6: Final answer
    x = 50,742.87

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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.