Home / 75,720.12-104,493.92-45,505.91

Finding the Fourth Proportional to 75,720.12, 104,493.92 and 45,505.91

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Solution

The fourth proportional to 75,720.12, 104,493.92 and 45,505.91 is: 62,798.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,720.12 : 104,493.92 = 45,505.91 : x
  2. Step 2: Convert to fraction form
    75,720.12/104,493.92 = 45,505.91/x
  3. Step 3: Cross multiply
    75,720.12x = 104,493.92 × 45,505.91
  4. Step 4: Simplify right side
    75,720.12x = 4,755,090,169.07
  5. Step 5: Solve for x
    x = 4,755,090,169.07/75,720.12
  6. Step 6: Final answer
    x = 62,798.24

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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.