Home / 66,523.61-91,778.46-51,214.82

Finding the Fourth Proportional to 66,523.61, 91,778.46 and 51,214.82

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Solution

The fourth proportional to 66,523.61, 91,778.46 and 51,214.82 is: 70,657.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,523.61 : 91,778.46 = 51,214.82 : x
  2. Step 2: Convert to fraction form
    66,523.61/91,778.46 = 51,214.82/x
  3. Step 3: Cross multiply
    66,523.61x = 91,778.46 × 51,214.82
  4. Step 4: Simplify right side
    66,523.61x = 4,700,417,308.78
  5. Step 5: Solve for x
    x = 4,700,417,308.78/66,523.61
  6. Step 6: Final answer
    x = 70,657.88

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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.