Home / 71,126.08-106,628.64-43,443.52

Finding the Fourth Proportional to 71,126.08, 106,628.64 and 43,443.52

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Solution

The fourth proportional to 71,126.08, 106,628.64 and 43,443.52 is: 65,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,126.08 : 106,628.64 = 43,443.52 : x
  2. Step 2: Convert to fraction form
    71,126.08/106,628.64 = 43,443.52/x
  3. Step 3: Cross multiply
    71,126.08x = 106,628.64 × 43,443.52
  4. Step 4: Simplify right side
    71,126.08x = 4,632,323,454.41
  5. Step 5: Solve for x
    x = 4,632,323,454.41/71,126.08
  6. Step 6: Final answer
    x = 65,128.34

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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.