Home / 74,274.12-102,498.42-40,740.36

Finding the Fourth Proportional to 74,274.12, 102,498.42 and 40,740.36

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Solution

The fourth proportional to 74,274.12, 102,498.42 and 40,740.36 is: 56,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,274.12 : 102,498.42 = 40,740.36 : x
  2. Step 2: Convert to fraction form
    74,274.12/102,498.42 = 40,740.36/x
  3. Step 3: Cross multiply
    74,274.12x = 102,498.42 × 40,740.36
  4. Step 4: Simplify right side
    74,274.12x = 4,175,822,530.23
  5. Step 5: Solve for x
    x = 4,175,822,530.23/74,274.12
  6. Step 6: Final answer
    x = 56,221.77

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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.