Home / 74,013.48-102,140.10-40,481.64

Finding the Fourth Proportional to 74,013.48, 102,140.10 and 40,481.64

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Solution

The fourth proportional to 74,013.48, 102,140.10 and 40,481.64 is: 55,865.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,013.48 : 102,140.10 = 40,481.64 : x
  2. Step 2: Convert to fraction form
    74,013.48/102,140.10 = 40,481.64/x
  3. Step 3: Cross multiply
    74,013.48x = 102,140.10 × 40,481.64
  4. Step 4: Simplify right side
    74,013.48x = 4,134,798,757.76
  5. Step 5: Solve for x
    x = 4,134,798,757.76/74,013.48
  6. Step 6: Final answer
    x = 55,865.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.