Home / 63,336.24-87,399-39,489.84

Finding the Fourth Proportional to 63,336.24, 87,399 and 39,489.84

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Solution

The fourth proportional to 63,336.24, 87,399 and 39,489.84 is: 54,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,336.24 : 87,399 = 39,489.84 : x
  2. Step 2: Convert to fraction form
    63,336.24/87,399 = 39,489.84/x
  3. Step 3: Cross multiply
    63,336.24x = 87,399 × 39,489.84
  4. Step 4: Simplify right side
    63,336.24x = 3,451,372,526.16
  5. Step 5: Solve for x
    x = 3,451,372,526.16/63,336.24
  6. Step 6: Final answer
    x = 54,492.85

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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.