Home / 74,643.90-103,029.75-49,168.86

Finding the Fourth Proportional to 74,643.90, 103,029.75 and 49,168.86

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Solution

The fourth proportional to 74,643.90, 103,029.75 and 49,168.86 is: 67,866.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,643.90 : 103,029.75 = 49,168.86 : x
  2. Step 2: Convert to fraction form
    74,643.90/103,029.75 = 49,168.86/x
  3. Step 3: Cross multiply
    74,643.90x = 103,029.75 × 49,168.86
  4. Step 4: Simplify right side
    74,643.90x = 5,065,855,353.59
  5. Step 5: Solve for x
    x = 5,065,855,353.59/74,643.90
  6. Step 6: Final answer
    x = 67,866.97

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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.