Home / 74,189.64-102,381.66-40,654.92

Finding the Fourth Proportional to 74,189.64, 102,381.66 and 40,654.92

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Solution

The fourth proportional to 74,189.64, 102,381.66 and 40,654.92 is: 56,103.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,189.64 : 102,381.66 = 40,654.92 : x
  2. Step 2: Convert to fraction form
    74,189.64/102,381.66 = 40,654.92/x
  3. Step 3: Cross multiply
    74,189.64x = 102,381.66 × 40,654.92
  4. Step 4: Simplify right side
    74,189.64x = 4,162,318,196.77
  5. Step 5: Solve for x
    x = 4,162,318,196.77/74,189.64
  6. Step 6: Final answer
    x = 56,103.77

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1.5x scale

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.