Home / 74,040.48-102,177.36-40,508.64

Finding the Fourth Proportional to 74,040.48, 102,177.36 and 40,508.64

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Solution

The fourth proportional to 74,040.48, 102,177.36 and 40,508.64 is: 55,902.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,040.48 : 102,177.36 = 40,508.64 : x
  2. Step 2: Convert to fraction form
    74,040.48/102,177.36 = 40,508.64/x
  3. Step 3: Cross multiply
    74,040.48x = 102,177.36 × 40,508.64
  4. Step 4: Simplify right side
    74,040.48x = 4,139,065,892.39
  5. Step 5: Solve for x
    x = 4,139,065,892.39/74,040.48
  6. Step 6: Final answer
    x = 55,902.74

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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.