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Finding the Fourth Proportional to 50,757, 70,044.66 and 28,405.32

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Solution

The fourth proportional to 50,757, 70,044.66 and 28,405.32 is: 39,199.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,757 : 70,044.66 = 28,405.32 : x
  2. Step 2: Convert to fraction form
    50,757/70,044.66 = 28,405.32/x
  3. Step 3: Cross multiply
    50,757x = 70,044.66 × 28,405.32
  4. Step 4: Simplify right side
    50,757x = 1,989,640,981.59
  5. Step 5: Solve for x
    x = 1,989,640,981.59/50,757
  6. Step 6: Final answer
    x = 39,199.34

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1.5x scale

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.