Home / 74,416.32-102,394.43-72,644.85

Finding the Fourth Proportional to 74,416.32, 102,394.43 and 72,644.85

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Solution

The fourth proportional to 74,416.32, 102,394.43 and 72,644.85 is: 99,956.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,416.32 : 102,394.43 = 72,644.85 : x
  2. Step 2: Convert to fraction form
    74,416.32/102,394.43 = 72,644.85/x
  3. Step 3: Cross multiply
    74,416.32x = 102,394.43 × 72,644.85
  4. Step 4: Simplify right side
    74,416.32x = 7,438,427,917.38
  5. Step 5: Solve for x
    x = 7,438,427,917.38/74,416.32
  6. Step 6: Final answer
    x = 99,956.94

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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.