Home / 99,942.48-149,962.32-47,289.24

Finding the Fourth Proportional to 99,942.48, 149,962.32 and 47,289.24

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Solution

The fourth proportional to 99,942.48, 149,962.32 and 47,289.24 is: 70,956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,942.48 : 149,962.32 = 47,289.24 : x
  2. Step 2: Convert to fraction form
    99,942.48/149,962.32 = 47,289.24/x
  3. Step 3: Cross multiply
    99,942.48x = 149,962.32 × 47,289.24
  4. Step 4: Simplify right side
    99,942.48x = 7,091,604,141.44
  5. Step 5: Solve for x
    x = 7,091,604,141.44/99,942.48
  6. Step 6: Final answer
    x = 70,956.86

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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.