Home / 74,505.35-102,816.82-40,513.86

Finding the Fourth Proportional to 74,505.35, 102,816.82 and 40,513.86

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Solution

The fourth proportional to 74,505.35, 102,816.82 and 40,513.86 is: 55,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,505.35 : 102,816.82 = 40,513.86 : x
  2. Step 2: Convert to fraction form
    74,505.35/102,816.82 = 40,513.86/x
  3. Step 3: Cross multiply
    74,505.35x = 102,816.82 × 40,513.86
  4. Step 4: Simplify right side
    74,505.35x = 4,165,506,251.13
  5. Step 5: Solve for x
    x = 4,165,506,251.13/74,505.35
  6. Step 6: Final answer
    x = 55,908.82

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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.