Home / 66,541.76-91,843.44-42,724.88

Finding the Fourth Proportional to 66,541.76, 91,843.44 and 42,724.88

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Solution

The fourth proportional to 66,541.76, 91,843.44 and 42,724.88 is: 58,970.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,541.76 : 91,843.44 = 42,724.88 : x
  2. Step 2: Convert to fraction form
    66,541.76/91,843.44 = 42,724.88/x
  3. Step 3: Cross multiply
    66,541.76x = 91,843.44 × 42,724.88
  4. Step 4: Simplify right side
    66,541.76x = 3,923,999,952.79
  5. Step 5: Solve for x
    x = 3,923,999,952.79/66,541.76
  6. Step 6: Final answer
    x = 58,970.49

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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.