Home / 65,798.11-90,694.75-51,432.56

Finding the Fourth Proportional to 65,798.11, 90,694.75 and 51,432.56

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Solution

The fourth proportional to 65,798.11, 90,694.75 and 51,432.56 is: 70,893.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,798.11 : 90,694.75 = 51,432.56 : x
  2. Step 2: Convert to fraction form
    65,798.11/90,694.75 = 51,432.56/x
  3. Step 3: Cross multiply
    65,798.11x = 90,694.75 × 51,432.56
  4. Step 4: Simplify right side
    65,798.11x = 4,664,663,171.06
  5. Step 5: Solve for x
    x = 4,664,663,171.06/65,798.11
  6. Step 6: Final answer
    x = 70,893.57

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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.