Home / 261,566.10-392,352.79-74,577.60

Finding the Fourth Proportional to 261,566.10, 392,352.79 and 74,577.60

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Solution

The fourth proportional to 261,566.10, 392,352.79 and 74,577.60 is: 111,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,566.10 : 392,352.79 = 74,577.60 : x
  2. Step 2: Convert to fraction form
    261,566.10/392,352.79 = 74,577.60/x
  3. Step 3: Cross multiply
    261,566.10x = 392,352.79 × 74,577.60
  4. Step 4: Simplify right side
    261,566.10x = 29,260,727,469.74
  5. Step 5: Solve for x
    x = 29,260,727,469.74/261,566.10
  6. Step 6: Final answer
    x = 111,867.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.