Home / 75,643.42-104,387.04-41,651.20

Finding the Fourth Proportional to 75,643.42, 104,387.04 and 41,651.20

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Solution

The fourth proportional to 75,643.42, 104,387.04 and 41,651.20 is: 57,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,643.42 : 104,387.04 = 41,651.20 : x
  2. Step 2: Convert to fraction form
    75,643.42/104,387.04 = 41,651.20/x
  3. Step 3: Cross multiply
    75,643.42x = 104,387.04 × 41,651.20
  4. Step 4: Simplify right side
    75,643.42x = 4,347,845,480.45
  5. Step 5: Solve for x
    x = 4,347,845,480.45/75,643.42
  6. Step 6: Final answer
    x = 57,478.17

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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.