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Finding the Fourth Proportional to 50,963, 70,328.94 and 28,607

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Solution

The fourth proportional to 50,963, 70,328.94 and 28,607 is: 39,477.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,963 : 70,328.94 = 28,607 : x
  2. Step 2: Convert to fraction form
    50,963/70,328.94 = 28,607/x
  3. Step 3: Cross multiply
    50,963x = 70,328.94 × 28,607
  4. Step 4: Simplify right side
    50,963x = 2,011,899,986.58
  5. Step 5: Solve for x
    x = 2,011,899,986.58/50,963
  6. Step 6: Final answer
    x = 39,477.66

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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.