Home / 55,631.61-83,446.65-13,512

Finding the Fourth Proportional to 55,631.61, 83,446.65 and 13,512

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Solution

The fourth proportional to 55,631.61, 83,446.65 and 13,512 is: 20,267.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,631.61 : 83,446.65 = 13,512 : x
  2. Step 2: Convert to fraction form
    55,631.61/83,446.65 = 13,512/x
  3. Step 3: Cross multiply
    55,631.61x = 83,446.65 × 13,512
  4. Step 4: Simplify right side
    55,631.61x = 1,127,531,134.80
  5. Step 5: Solve for x
    x = 1,127,531,134.80/55,631.61
  6. Step 6: Final answer
    x = 20,267.81

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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.