Home / 67,386.31-100,997.47-47,670.55

Finding the Fourth Proportional to 67,386.31, 100,997.47 and 47,670.55

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Solution

The fourth proportional to 67,386.31, 100,997.47 and 47,670.55 is: 71,447.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,386.31 : 100,997.47 = 47,670.55 : x
  2. Step 2: Convert to fraction form
    67,386.31/100,997.47 = 47,670.55/x
  3. Step 3: Cross multiply
    67,386.31x = 100,997.47 × 47,670.55
  4. Step 4: Simplify right side
    67,386.31x = 4,814,604,571.84
  5. Step 5: Solve for x
    x = 4,814,604,571.84/67,386.31
  6. Step 6: Final answer
    x = 71,447.82

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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.