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Finding the Fourth Proportional to 49,172.64, 67,848.07 and 28,750.77

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Solution

The fourth proportional to 49,172.64, 67,848.07 and 28,750.77 is: 39,670.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,172.64 : 67,848.07 = 28,750.77 : x
  2. Step 2: Convert to fraction form
    49,172.64/67,848.07 = 28,750.77/x
  3. Step 3: Cross multiply
    49,172.64x = 67,848.07 × 28,750.77
  4. Step 4: Simplify right side
    49,172.64x = 1,950,684,255.51
  5. Step 5: Solve for x
    x = 1,950,684,255.51/49,172.64
  6. Step 6: Final answer
    x = 39,670.11

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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.