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Finding the Fourth Proportional to 50,810.60, 70,115.10 and 28,147.47

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Solution

The fourth proportional to 50,810.60, 70,115.10 and 28,147.47 is: 38,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,810.60 : 70,115.10 = 28,147.47 : x
  2. Step 2: Convert to fraction form
    50,810.60/70,115.10 = 28,147.47/x
  3. Step 3: Cross multiply
    50,810.60x = 70,115.10 × 28,147.47
  4. Step 4: Simplify right side
    50,810.60x = 1,973,562,673.80
  5. Step 5: Solve for x
    x = 1,973,562,673.80/50,810.60
  6. Step 6: Final answer
    x = 38,841.55

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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.