Home / 74,186.15-102,372.04-47,325.78

Finding the Fourth Proportional to 74,186.15, 102,372.04 and 47,325.78

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Solution

The fourth proportional to 74,186.15, 102,372.04 and 47,325.78 is: 65,306.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,186.15 : 102,372.04 = 47,325.78 : x
  2. Step 2: Convert to fraction form
    74,186.15/102,372.04 = 47,325.78/x
  3. Step 3: Cross multiply
    74,186.15x = 102,372.04 × 47,325.78
  4. Step 4: Simplify right side
    74,186.15x = 4,844,836,643.19
  5. Step 5: Solve for x
    x = 4,844,836,643.19/74,186.15
  6. Step 6: Final answer
    x = 65,306.48

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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.