Home / 66,987.28-92,423.52-43,127.76

Finding the Fourth Proportional to 66,987.28, 92,423.52 and 43,127.76

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Solution

The fourth proportional to 66,987.28, 92,423.52 and 43,127.76 is: 59,504.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,987.28 : 92,423.52 = 43,127.76 : x
  2. Step 2: Convert to fraction form
    66,987.28/92,423.52 = 43,127.76/x
  3. Step 3: Cross multiply
    66,987.28x = 92,423.52 × 43,127.76
  4. Step 4: Simplify right side
    66,987.28x = 3,986,019,388.92
  5. Step 5: Solve for x
    x = 3,986,019,388.92/66,987.28
  6. Step 6: Final answer
    x = 59,504.12

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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.