Home / 75,564.60-113,419.80-38,166.90

Finding the Fourth Proportional to 75,564.60, 113,419.80 and 38,166.90

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Solution

The fourth proportional to 75,564.60, 113,419.80 and 38,166.90 is: 57,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,564.60 : 113,419.80 = 38,166.90 : x
  2. Step 2: Convert to fraction form
    75,564.60/113,419.80 = 38,166.90/x
  3. Step 3: Cross multiply
    75,564.60x = 113,419.80 × 38,166.90
  4. Step 4: Simplify right side
    75,564.60x = 4,328,882,164.62
  5. Step 5: Solve for x
    x = 4,328,882,164.62/75,564.60
  6. Step 6: Final answer
    x = 57,287.17

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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.