Home / 73,290.58-109,988.36-31,200.17

Finding the Fourth Proportional to 73,290.58, 109,988.36 and 31,200.17

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Solution

The fourth proportional to 73,290.58, 109,988.36 and 31,200.17 is: 46,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,290.58 : 109,988.36 = 31,200.17 : x
  2. Step 2: Convert to fraction form
    73,290.58/109,988.36 = 31,200.17/x
  3. Step 3: Cross multiply
    73,290.58x = 109,988.36 × 31,200.17
  4. Step 4: Simplify right side
    73,290.58x = 3,431,655,530.02
  5. Step 5: Solve for x
    x = 3,431,655,530.02/73,290.58
  6. Step 6: Final answer
    x = 46,822.60

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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.