Home / 75,306.60-113,004.70-28,564.20

Finding the Fourth Proportional to 75,306.60, 113,004.70 and 28,564.20

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Solution

The fourth proportional to 75,306.60, 113,004.70 and 28,564.20 is: 42,863.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,306.60 : 113,004.70 = 28,564.20 : x
  2. Step 2: Convert to fraction form
    75,306.60/113,004.70 = 28,564.20/x
  3. Step 3: Cross multiply
    75,306.60x = 113,004.70 × 28,564.20
  4. Step 4: Simplify right side
    75,306.60x = 3,227,888,851.74
  5. Step 5: Solve for x
    x = 3,227,888,851.74/75,306.60
  6. Step 6: Final answer
    x = 42,863.29

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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.