Home / 211,127.10-316,692.69-53,355.57

Finding the Fourth Proportional to 211,127.10, 316,692.69 and 53,355.57

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Solution

The fourth proportional to 211,127.10, 316,692.69 and 53,355.57 is: 80,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,127.10 : 316,692.69 = 53,355.57 : x
  2. Step 2: Convert to fraction form
    211,127.10/316,692.69 = 53,355.57/x
  3. Step 3: Cross multiply
    211,127.10x = 316,692.69 × 53,355.57
  4. Step 4: Simplify right side
    211,127.10x = 16,897,318,989.78
  5. Step 5: Solve for x
    x = 16,897,318,989.78/211,127.10
  6. Step 6: Final answer
    x = 80,033.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.