Home / 75,046.43-112,513.75-45,457.13

Finding the Fourth Proportional to 75,046.43, 112,513.75 and 45,457.13

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Solution

The fourth proportional to 75,046.43, 112,513.75 and 45,457.13 is: 68,151.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,046.43 : 112,513.75 = 45,457.13 : x
  2. Step 2: Convert to fraction form
    75,046.43/112,513.75 = 45,457.13/x
  3. Step 3: Cross multiply
    75,046.43x = 112,513.75 × 45,457.13
  4. Step 4: Simplify right side
    75,046.43x = 5,114,552,160.54
  5. Step 5: Solve for x
    x = 5,114,552,160.54/75,046.43
  6. Step 6: Final answer
    x = 68,151.84

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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.