Home / 99,363.75-149,023.23-28,284.81

Finding the Fourth Proportional to 99,363.75, 149,023.23 and 28,284.81

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Solution

The fourth proportional to 99,363.75, 149,023.23 and 28,284.81 is: 42,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,363.75 : 149,023.23 = 28,284.81 : x
  2. Step 2: Convert to fraction form
    99,363.75/149,023.23 = 28,284.81/x
  3. Step 3: Cross multiply
    99,363.75x = 149,023.23 × 28,284.81
  4. Step 4: Simplify right side
    99,363.75x = 4,215,093,746.14
  5. Step 5: Solve for x
    x = 4,215,093,746.14/99,363.75
  6. Step 6: Final answer
    x = 42,420.84

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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.