Home / 64,909.03-89,575.14-36,231.40

Finding the Fourth Proportional to 64,909.03, 89,575.14 and 36,231.40

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Solution

The fourth proportional to 64,909.03, 89,575.14 and 36,231.40 is: 49,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,909.03 : 89,575.14 = 36,231.40 : x
  2. Step 2: Convert to fraction form
    64,909.03/89,575.14 = 36,231.40/x
  3. Step 3: Cross multiply
    64,909.03x = 89,575.14 × 36,231.40
  4. Step 4: Simplify right side
    64,909.03x = 3,245,432,727.40
  5. Step 5: Solve for x
    x = 3,245,432,727.40/64,909.03
  6. Step 6: Final answer
    x = 49,999.71

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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.