Home / 65,428.62-90,285.98-39,596.84

Finding the Fourth Proportional to 65,428.62, 90,285.98 and 39,596.84

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Solution

The fourth proportional to 65,428.62, 90,285.98 and 39,596.84 is: 54,640.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,428.62 : 90,285.98 = 39,596.84 : x
  2. Step 2: Convert to fraction form
    65,428.62/90,285.98 = 39,596.84/x
  3. Step 3: Cross multiply
    65,428.62x = 90,285.98 × 39,596.84
  4. Step 4: Simplify right side
    65,428.62x = 3,575,039,504.30
  5. Step 5: Solve for x
    x = 3,575,039,504.30/65,428.62
  6. Step 6: Final answer
    x = 54,640.30

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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.