Home / 83,390.45-125,071.59-23,405.16

Finding the Fourth Proportional to 83,390.45, 125,071.59 and 23,405.16

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Solution

The fourth proportional to 83,390.45, 125,071.59 and 23,405.16 is: 35,103.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,390.45 : 125,071.59 = 23,405.16 : x
  2. Step 2: Convert to fraction form
    83,390.45/125,071.59 = 23,405.16/x
  3. Step 3: Cross multiply
    83,390.45x = 125,071.59 × 23,405.16
  4. Step 4: Simplify right side
    83,390.45x = 2,927,320,838.28
  5. Step 5: Solve for x
    x = 2,927,320,838.28/83,390.45
  6. Step 6: Final answer
    x = 35,103.79

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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.