Home / 74,138.15-102,335.60-45,066.42

Finding the Fourth Proportional to 74,138.15, 102,335.60 and 45,066.42

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Solution

The fourth proportional to 74,138.15, 102,335.60 and 45,066.42 is: 62,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,138.15 : 102,335.60 = 45,066.42 : x
  2. Step 2: Convert to fraction form
    74,138.15/102,335.60 = 45,066.42/x
  3. Step 3: Cross multiply
    74,138.15x = 102,335.60 × 45,066.42
  4. Step 4: Simplify right side
    74,138.15x = 4,611,899,243.22
  5. Step 5: Solve for x
    x = 4,611,899,243.22/74,138.15
  6. Step 6: Final answer
    x = 62,206.83

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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.