Home / 71,184.89-98,237.21-39,355.85

Finding the Fourth Proportional to 71,184.89, 98,237.21 and 39,355.85

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Solution

The fourth proportional to 71,184.89, 98,237.21 and 39,355.85 is: 54,312.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,184.89 : 98,237.21 = 39,355.85 : x
  2. Step 2: Convert to fraction form
    71,184.89/98,237.21 = 39,355.85/x
  3. Step 3: Cross multiply
    71,184.89x = 98,237.21 × 39,355.85
  4. Step 4: Simplify right side
    71,184.89x = 3,866,208,213.21
  5. Step 5: Solve for x
    x = 3,866,208,213.21/71,184.89
  6. Step 6: Final answer
    x = 54,312.21

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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.