Home / 40,955.13-61,380.81-19,899.99

Finding the Fourth Proportional to 40,955.13, 61,380.81 and 19,899.99

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Solution

The fourth proportional to 40,955.13, 61,380.81 and 19,899.99 is: 29,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,955.13 : 61,380.81 = 19,899.99 : x
  2. Step 2: Convert to fraction form
    40,955.13/61,380.81 = 19,899.99/x
  3. Step 3: Cross multiply
    40,955.13x = 61,380.81 × 19,899.99
  4. Step 4: Simplify right side
    40,955.13x = 1,221,477,505.19
  5. Step 5: Solve for x
    x = 1,221,477,505.19/40,955.13
  6. Step 6: Final answer
    x = 29,824.77

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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.