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Finding the Fourth Proportional to 71,657.34, 107,485.88 and 19,066.84

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Solution

The fourth proportional to 71,657.34, 107,485.88 and 19,066.84 is: 28,600.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,657.34 : 107,485.88 = 19,066.84 : x
  2. Step 2: Convert to fraction form
    71,657.34/107,485.88 = 19,066.84/x
  3. Step 3: Cross multiply
    71,657.34x = 107,485.88 × 19,066.84
  4. Step 4: Simplify right side
    71,657.34x = 2,049,416,076.22
  5. Step 5: Solve for x
    x = 2,049,416,076.22/71,657.34
  6. Step 6: Final answer
    x = 28,600.23

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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.