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Finding the Fourth Proportional to 55,980.60, 83,946.60 and 18,526.20

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Solution

The fourth proportional to 55,980.60, 83,946.60 and 18,526.20 is: 27,781.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,980.60 : 83,946.60 = 18,526.20 : x
  2. Step 2: Convert to fraction form
    55,980.60/83,946.60 = 18,526.20/x
  3. Step 3: Cross multiply
    55,980.60x = 83,946.60 × 18,526.20
  4. Step 4: Simplify right side
    55,980.60x = 1,555,211,500.92
  5. Step 5: Solve for x
    x = 1,555,211,500.92/55,980.60
  6. Step 6: Final answer
    x = 27,781.26

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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.