Home / 74,542.60-111,875.10-73,959.40

Finding the Fourth Proportional to 74,542.60, 111,875.10 and 73,959.40

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Solution

The fourth proportional to 74,542.60, 111,875.10 and 73,959.40 is: 110,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,542.60 : 111,875.10 = 73,959.40 : x
  2. Step 2: Convert to fraction form
    74,542.60/111,875.10 = 73,959.40/x
  3. Step 3: Cross multiply
    74,542.60x = 111,875.10 × 73,959.40
  4. Step 4: Simplify right side
    74,542.60x = 8,274,215,270.94
  5. Step 5: Solve for x
    x = 8,274,215,270.94/74,542.60
  6. Step 6: Final answer
    x = 110,999.82

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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.