Home / 99,792.81-149,753.45-39,811.04

Finding the Fourth Proportional to 99,792.81, 149,753.45 and 39,811.04

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Solution

The fourth proportional to 99,792.81, 149,753.45 and 39,811.04 is: 59,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,792.81 : 149,753.45 = 39,811.04 : x
  2. Step 2: Convert to fraction form
    99,792.81/149,753.45 = 39,811.04/x
  3. Step 3: Cross multiply
    99,792.81x = 149,753.45 × 39,811.04
  4. Step 4: Simplify right side
    99,792.81x = 5,961,840,588.09
  5. Step 5: Solve for x
    x = 5,961,840,588.09/99,792.81
  6. Step 6: Final answer
    x = 59,742.19

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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.