Home / 65,710.14-98,635.36-28,288.74

Finding the Fourth Proportional to 65,710.14, 98,635.36 and 28,288.74

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Solution

The fourth proportional to 65,710.14, 98,635.36 and 28,288.74 is: 42,463.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,710.14 : 98,635.36 = 28,288.74 : x
  2. Step 2: Convert to fraction form
    65,710.14/98,635.36 = 28,288.74/x
  3. Step 3: Cross multiply
    65,710.14x = 98,635.36 × 28,288.74
  4. Step 4: Simplify right side
    65,710.14x = 2,790,270,053.85
  5. Step 5: Solve for x
    x = 2,790,270,053.85/65,710.14
  6. Step 6: Final answer
    x = 42,463.31

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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.