Home / 99,485.45-149,234.01-28,402.62

Finding the Fourth Proportional to 99,485.45, 149,234.01 and 28,402.62

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Solution

The fourth proportional to 99,485.45, 149,234.01 and 28,402.62 is: 42,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,485.45 : 149,234.01 = 28,402.62 : x
  2. Step 2: Convert to fraction form
    99,485.45/149,234.01 = 28,402.62/x
  3. Step 3: Cross multiply
    99,485.45x = 149,234.01 × 28,402.62
  4. Step 4: Simplify right side
    99,485.45x = 4,238,636,210.97
  5. Step 5: Solve for x
    x = 4,238,636,210.97/99,485.45
  6. Step 6: Final answer
    x = 42,605.59

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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.