Home / 75,718.85-104,492.71-41,728.57

Finding the Fourth Proportional to 75,718.85, 104,492.71 and 41,728.57

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Solution

The fourth proportional to 75,718.85, 104,492.71 and 41,728.57 is: 57,585.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,718.85 : 104,492.71 = 41,728.57 : x
  2. Step 2: Convert to fraction form
    75,718.85/104,492.71 = 41,728.57/x
  3. Step 3: Cross multiply
    75,718.85x = 104,492.71 × 41,728.57
  4. Step 4: Simplify right side
    75,718.85x = 4,360,331,155.08
  5. Step 5: Solve for x
    x = 4,360,331,155.08/75,718.85
  6. Step 6: Final answer
    x = 57,585.81

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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.