Home / 100,582.72-150,876-30,461.76

Finding the Fourth Proportional to 100,582.72, 150,876 and 30,461.76

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Solution

The fourth proportional to 100,582.72, 150,876 and 30,461.76 is: 45,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,582.72 : 150,876 = 30,461.76 : x
  2. Step 2: Convert to fraction form
    100,582.72/150,876 = 30,461.76/x
  3. Step 3: Cross multiply
    100,582.72x = 150,876 × 30,461.76
  4. Step 4: Simplify right side
    100,582.72x = 4,595,948,501.76
  5. Step 5: Solve for x
    x = 4,595,948,501.76/100,582.72
  6. Step 6: Final answer
    x = 45,693.22

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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.