Home / 69,899.10-96,457.46-39,680.43

Finding the Fourth Proportional to 69,899.10, 96,457.46 and 39,680.43

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Solution

The fourth proportional to 69,899.10, 96,457.46 and 39,680.43 is: 54,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,899.10 : 96,457.46 = 39,680.43 : x
  2. Step 2: Convert to fraction form
    69,899.10/96,457.46 = 39,680.43/x
  3. Step 3: Cross multiply
    69,899.10x = 96,457.46 × 39,680.43
  4. Step 4: Simplify right side
    69,899.10x = 3,827,473,489.51
  5. Step 5: Solve for x
    x = 3,827,473,489.51/69,899.10
  6. Step 6: Final answer
    x = 54,757.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.