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Finding the Fourth Proportional to 71,885.76, 107,685.44 and 56,230.08

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Solution

The fourth proportional to 71,885.76, 107,685.44 and 56,230.08 is: 84,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,885.76 : 107,685.44 = 56,230.08 : x
  2. Step 2: Convert to fraction form
    71,885.76/107,685.44 = 56,230.08/x
  3. Step 3: Cross multiply
    71,885.76x = 107,685.44 × 56,230.08
  4. Step 4: Simplify right side
    71,885.76x = 6,055,160,906.04
  5. Step 5: Solve for x
    x = 6,055,160,906.04/71,885.76
  6. Step 6: Final answer
    x = 84,233.11

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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.