Home / 74,421.72-102,701.57-40,429.94

Finding the Fourth Proportional to 74,421.72, 102,701.57 and 40,429.94

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Solution

The fourth proportional to 74,421.72, 102,701.57 and 40,429.94 is: 55,793.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,421.72 : 102,701.57 = 40,429.94 : x
  2. Step 2: Convert to fraction form
    74,421.72/102,701.57 = 40,429.94/x
  3. Step 3: Cross multiply
    74,421.72x = 102,701.57 × 40,429.94
  4. Step 4: Simplify right side
    74,421.72x = 4,152,217,597.35
  5. Step 5: Solve for x
    x = 4,152,217,597.35/74,421.72
  6. Step 6: Final answer
    x = 55,793.09

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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.