Home / 52,060.60-78,090.21-12,618.06

Finding the Fourth Proportional to 52,060.60, 78,090.21 and 12,618.06

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Solution

The fourth proportional to 52,060.60, 78,090.21 and 12,618.06 is: 18,926.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,060.60 : 78,090.21 = 12,618.06 : x
  2. Step 2: Convert to fraction form
    52,060.60/78,090.21 = 12,618.06/x
  3. Step 3: Cross multiply
    52,060.60x = 78,090.21 × 12,618.06
  4. Step 4: Simplify right side
    52,060.60x = 985,346,662.35
  5. Step 5: Solve for x
    x = 985,346,662.35/52,060.60
  6. Step 6: Final answer
    x = 18,926.92

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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.