Home / 65,715.14-98,642.86-28,293.74

Finding the Fourth Proportional to 65,715.14, 98,642.86 and 28,293.74

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Solution

The fourth proportional to 65,715.14, 98,642.86 and 28,293.74 is: 42,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,715.14 : 98,642.86 = 28,293.74 : x
  2. Step 2: Convert to fraction form
    65,715.14/98,642.86 = 28,293.74/x
  3. Step 3: Cross multiply
    65,715.14x = 98,642.86 × 28,293.74
  4. Step 4: Simplify right side
    65,715.14x = 2,790,975,433.70
  5. Step 5: Solve for x
    x = 2,790,975,433.70/65,715.14
  6. Step 6: Final answer
    x = 42,470.81

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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.