Home / 75,275.20-103,619.04-65,061.57

Finding the Fourth Proportional to 75,275.20, 103,619.04 and 65,061.57

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Solution

The fourth proportional to 75,275.20, 103,619.04 and 65,061.57 is: 89,559.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,275.20 : 103,619.04 = 65,061.57 : x
  2. Step 2: Convert to fraction form
    75,275.20/103,619.04 = 65,061.57/x
  3. Step 3: Cross multiply
    75,275.20x = 103,619.04 × 65,061.57
  4. Step 4: Simplify right side
    75,275.20x = 6,741,617,424.29
  5. Step 5: Solve for x
    x = 6,741,617,424.29/75,275.20
  6. Step 6: Final answer
    x = 89,559.61

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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.