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Finding the Fourth Proportional to 80,564.35, 120,848.91 and 38,448.88

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Solution

The fourth proportional to 80,564.35, 120,848.91 and 38,448.88 is: 57,674.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,564.35 : 120,848.91 = 38,448.88 : x
  2. Step 2: Convert to fraction form
    80,564.35/120,848.91 = 38,448.88/x
  3. Step 3: Cross multiply
    80,564.35x = 120,848.91 × 38,448.88
  4. Step 4: Simplify right side
    80,564.35x = 4,646,505,008.69
  5. Step 5: Solve for x
    x = 4,646,505,008.69/80,564.35
  6. Step 6: Final answer
    x = 57,674.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.