Home / 74,146.39-102,322.04-40,612.39

Finding the Fourth Proportional to 74,146.39, 102,322.04 and 40,612.39

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Solution

The fourth proportional to 74,146.39, 102,322.04 and 40,612.39 is: 56,045.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,146.39 : 102,322.04 = 40,612.39 : x
  2. Step 2: Convert to fraction form
    74,146.39/102,322.04 = 40,612.39/x
  3. Step 3: Cross multiply
    74,146.39x = 102,322.04 × 40,612.39
  4. Step 4: Simplify right side
    74,146.39x = 4,155,542,594.08
  5. Step 5: Solve for x
    x = 4,155,542,594.08/74,146.39
  6. Step 6: Final answer
    x = 56,045.11

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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.