Home / 71,941.61-99,285.34-39,682.55

Finding the Fourth Proportional to 71,941.61, 99,285.34 and 39,682.55

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Solution

The fourth proportional to 71,941.61, 99,285.34 and 39,682.55 is: 54,765.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,941.61 : 99,285.34 = 39,682.55 : x
  2. Step 2: Convert to fraction form
    71,941.61/99,285.34 = 39,682.55/x
  3. Step 3: Cross multiply
    71,941.61x = 99,285.34 × 39,682.55
  4. Step 4: Simplify right side
    71,941.61x = 3,939,895,121.40
  5. Step 5: Solve for x
    x = 3,939,895,121.40/71,941.61
  6. Step 6: Final answer
    x = 54,765.18

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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.