Home / 71,895.90-99,217.07-39,631.67

Finding the Fourth Proportional to 71,895.90, 99,217.07 and 39,631.67

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Solution

The fourth proportional to 71,895.90, 99,217.07 and 39,631.67 is: 54,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,895.90 : 99,217.07 = 39,631.67 : x
  2. Step 2: Convert to fraction form
    71,895.90/99,217.07 = 39,631.67/x
  3. Step 3: Cross multiply
    71,895.90x = 99,217.07 × 39,631.67
  4. Step 4: Simplify right side
    71,895.90x = 3,932,138,176.61
  5. Step 5: Solve for x
    x = 3,932,138,176.61/71,895.90
  6. Step 6: Final answer
    x = 54,692.11

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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.