Home / 99,627.10-149,396.64-28,533.61

Finding the Fourth Proportional to 99,627.10, 149,396.64 and 28,533.61

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Solution

The fourth proportional to 99,627.10, 149,396.64 and 28,533.61 is: 42,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,627.10 : 149,396.64 = 28,533.61 : x
  2. Step 2: Convert to fraction form
    99,627.10/149,396.64 = 28,533.61/x
  3. Step 3: Cross multiply
    99,627.10x = 149,396.64 × 28,533.61
  4. Step 4: Simplify right side
    99,627.10x = 4,262,825,461.07
  5. Step 5: Solve for x
    x = 4,262,825,461.07/99,627.10
  6. Step 6: Final answer
    x = 42,787.81

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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.