Home / 99,790.99-149,607-57,623.20

Finding the Fourth Proportional to 99,790.99, 149,607 and 57,623.20

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Solution

The fourth proportional to 99,790.99, 149,607 and 57,623.20 is: 86,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,790.99 : 149,607 = 57,623.20 : x
  2. Step 2: Convert to fraction form
    99,790.99/149,607 = 57,623.20/x
  3. Step 3: Cross multiply
    99,790.99x = 149,607 × 57,623.20
  4. Step 4: Simplify right side
    99,790.99x = 8,620,833,708.38
  5. Step 5: Solve for x
    x = 8,620,833,708.38/99,790.99
  6. Step 6: Final answer
    x = 86,388.90

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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.