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Finding the Fourth Proportional to 71,348.74, 107,014.59 and 18,762.32

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Solution

The fourth proportional to 71,348.74, 107,014.59 and 18,762.32 is: 28,141.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,348.74 : 107,014.59 = 18,762.32 : x
  2. Step 2: Convert to fraction form
    71,348.74/107,014.59 = 18,762.32/x
  3. Step 3: Cross multiply
    71,348.74x = 107,014.59 × 18,762.32
  4. Step 4: Simplify right side
    71,348.74x = 2,007,841,982.25
  5. Step 5: Solve for x
    x = 2,007,841,982.25/71,348.74
  6. Step 6: Final answer
    x = 28,141.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.