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Finding the Fourth Proportional to 50,988, 70,363.44 and 28,632

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Solution

The fourth proportional to 50,988, 70,363.44 and 28,632 is: 39,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,988 : 70,363.44 = 28,632 : x
  2. Step 2: Convert to fraction form
    50,988/70,363.44 = 28,632/x
  3. Step 3: Cross multiply
    50,988x = 70,363.44 × 28,632
  4. Step 4: Simplify right side
    50,988x = 2,014,646,014.08
  5. Step 5: Solve for x
    x = 2,014,646,014.08/50,988
  6. Step 6: Final answer
    x = 39,512.16

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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.